Home / 75,298.20-112,332.15-69,929.12

Finding the Fourth Proportional to 75,298.20, 112,332.15 and 69,929.12

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Solution

The fourth proportional to 75,298.20, 112,332.15 and 69,929.12 is: 104,322.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,298.20 : 112,332.15 = 69,929.12 : x
  2. Step 2: Convert to fraction form
    75,298.20/112,332.15 = 69,929.12/x
  3. Step 3: Cross multiply
    75,298.20x = 112,332.15 × 69,929.12
  4. Step 4: Simplify right side
    75,298.20x = 7,855,287,835.55
  5. Step 5: Solve for x
    x = 7,855,287,835.55/75,298.20
  6. Step 6: Final answer
    x = 104,322.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.