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Finding the Fourth Proportional to 111,463.80, 153,820.04 and 63,718.22

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Solution

The fourth proportional to 111,463.80, 153,820.04 and 63,718.22 is: 87,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,463.80 : 153,820.04 = 63,718.22 : x
  2. Step 2: Convert to fraction form
    111,463.80/153,820.04 = 63,718.22/x
  3. Step 3: Cross multiply
    111,463.80x = 153,820.04 × 63,718.22
  4. Step 4: Simplify right side
    111,463.80x = 9,801,138,061.44
  5. Step 5: Solve for x
    x = 9,801,138,061.44/111,463.80
  6. Step 6: Final answer
    x = 87,931.13

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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.