Home / 112,700.75-155,531.90-62,399.75

Finding the Fourth Proportional to 112,700.75, 155,531.90 and 62,399.75

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Solution

The fourth proportional to 112,700.75, 155,531.90 and 62,399.75 is: 86,114.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,700.75 : 155,531.90 = 62,399.75 : x
  2. Step 2: Convert to fraction form
    112,700.75/155,531.90 = 62,399.75/x
  3. Step 3: Cross multiply
    112,700.75x = 155,531.90 × 62,399.75
  4. Step 4: Simplify right side
    112,700.75x = 9,705,151,365.03
  5. Step 5: Solve for x
    x = 9,705,151,365.03/112,700.75
  6. Step 6: Final answer
    x = 86,114.35

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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.