Home / 112,830-155,705.40-62,532.24

Finding the Fourth Proportional to 112,830, 155,705.40 and 62,532.24

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Solution

The fourth proportional to 112,830, 155,705.40 and 62,532.24 is: 86,294.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,830 : 155,705.40 = 62,532.24 : x
  2. Step 2: Convert to fraction form
    112,830/155,705.40 = 62,532.24/x
  3. Step 3: Cross multiply
    112,830x = 155,705.40 × 62,532.24
  4. Step 4: Simplify right side
    112,830x = 9,736,607,442.10
  5. Step 5: Solve for x
    x = 9,736,607,442.10/112,830
  6. Step 6: Final answer
    x = 86,294.49

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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.