Home / 112,931.30-155,842.88-62,630.30

Finding the Fourth Proportional to 112,931.30, 155,842.88 and 62,630.30

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Solution

The fourth proportional to 112,931.30, 155,842.88 and 62,630.30 is: 86,428.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,931.30 : 155,842.88 = 62,630.30 : x
  2. Step 2: Convert to fraction form
    112,931.30/155,842.88 = 62,630.30/x
  3. Step 3: Cross multiply
    112,931.30x = 155,842.88 × 62,630.30
  4. Step 4: Simplify right side
    112,931.30x = 9,760,486,327.26
  5. Step 5: Solve for x
    x = 9,760,486,327.26/112,931.30
  6. Step 6: Final answer
    x = 86,428.53

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1.5x scale

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.