Home / 100,748.55-139,067.14-62,530.47

Finding the Fourth Proportional to 100,748.55, 139,067.14 and 62,530.47

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Solution

The fourth proportional to 100,748.55, 139,067.14 and 62,530.47 is: 86,313.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,748.55 : 139,067.14 = 62,530.47 : x
  2. Step 2: Convert to fraction form
    100,748.55/139,067.14 = 62,530.47/x
  3. Step 3: Cross multiply
    100,748.55x = 139,067.14 × 62,530.47
  4. Step 4: Simplify right side
    100,748.55x = 8,695,934,336.92
  5. Step 5: Solve for x
    x = 8,695,934,336.92/100,748.55
  6. Step 6: Final answer
    x = 86,313.24

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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.