Home / 112,972.88-155,915.88-62,675.12

Finding the Fourth Proportional to 112,972.88, 155,915.88 and 62,675.12

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Solution

The fourth proportional to 112,972.88, 155,915.88 and 62,675.12 is: 86,499.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,972.88 : 155,915.88 = 62,675.12 : x
  2. Step 2: Convert to fraction form
    112,972.88/155,915.88 = 62,675.12/x
  3. Step 3: Cross multiply
    112,972.88x = 155,915.88 × 62,675.12
  4. Step 4: Simplify right side
    112,972.88x = 9,772,046,488.91
  5. Step 5: Solve for x
    x = 9,772,046,488.91/112,972.88
  6. Step 6: Final answer
    x = 86,499.05

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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.