Home / 143,980,877.88-198,699,250.04-81,259,166.80

Finding the Fourth Proportional to 143,980,877.88, 198,699,250.04 and 81,259,166.80

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Solution

The fourth proportional to 143,980,877.88, 198,699,250.04 and 81,259,166.80 is: 112,140,832.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,980,877.88 : 198,699,250.04 = 81,259,166.80 : x
  2. Step 2: Convert to fraction form
    143,980,877.88/198,699,250.04 = 81,259,166.80/x
  3. Step 3: Cross multiply
    143,980,877.88x = 198,699,250.04 × 81,259,166.80
  4. Step 4: Simplify right side
    143,980,877.88x = 16,146,135,502,035,266
  5. Step 5: Solve for x
    x = 16,146,135,502,035,266/143,980,877.88
  6. Step 6: Final answer
    x = 112,140,832.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.