Home / 111,046.28-153,213.54-63,282.20

Finding the Fourth Proportional to 111,046.28, 153,213.54 and 63,282.20

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Solution

The fourth proportional to 111,046.28, 153,213.54 and 63,282.20 is: 87,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,046.28 : 153,213.54 = 63,282.20 : x
  2. Step 2: Convert to fraction form
    111,046.28/153,213.54 = 63,282.20/x
  3. Step 3: Cross multiply
    111,046.28x = 153,213.54 × 63,282.20
  4. Step 4: Simplify right side
    111,046.28x = 9,695,689,880.99
  5. Step 5: Solve for x
    x = 9,695,689,880.99/111,046.28
  6. Step 6: Final answer
    x = 87,312.15

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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.