Home / 100,925.28-139,307.04-58,502.88

Finding the Fourth Proportional to 100,925.28, 139,307.04 and 58,502.88

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Solution

The fourth proportional to 100,925.28, 139,307.04 and 58,502.88 is: 80,751.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,925.28 : 139,307.04 = 58,502.88 : x
  2. Step 2: Convert to fraction form
    100,925.28/139,307.04 = 58,502.88/x
  3. Step 3: Cross multiply
    100,925.28x = 139,307.04 × 58,502.88
  4. Step 4: Simplify right side
    100,925.28x = 8,149,863,044.28
  5. Step 5: Solve for x
    x = 8,149,863,044.28/100,925.28
  6. Step 6: Final answer
    x = 80,751.45

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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.