Home / 99,457.80-149,090.85-63,818.61

Finding the Fourth Proportional to 99,457.80, 149,090.85 and 63,818.61

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Solution

The fourth proportional to 99,457.80, 149,090.85 and 63,818.61 is: 95,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,457.80 : 149,090.85 = 63,818.61 : x
  2. Step 2: Convert to fraction form
    99,457.80/149,090.85 = 63,818.61/x
  3. Step 3: Cross multiply
    99,457.80x = 149,090.85 × 63,818.61
  4. Step 4: Simplify right side
    99,457.80x = 9,514,770,810.72
  5. Step 5: Solve for x
    x = 9,514,770,810.72/99,457.80
  6. Step 6: Final answer
    x = 95,666.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.