Home / 112,724,893.60-155,560,376-68,671,879.20

Finding the Fourth Proportional to 112,724,893.60, 155,560,376 and 68,671,879.20

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Solution

The fourth proportional to 112,724,893.60, 155,560,376 and 68,671,879.20 is: 94,767,207.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,724,893.60 : 155,560,376 = 68,671,879.20 : x
  2. Step 2: Convert to fraction form
    112,724,893.60/155,560,376 = 68,671,879.20/x
  3. Step 3: Cross multiply
    112,724,893.60x = 155,560,376 × 68,671,879.20
  4. Step 4: Simplify right side
    112,724,893.60x = 10,682,623,348,978,580
  5. Step 5: Solve for x
    x = 10,682,623,348,978,580/112,724,893.60
  6. Step 6: Final answer
    x = 94,767,207.21

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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.