Home / 112,964.27-155,762.87-72,073.68

Finding the Fourth Proportional to 112,964.27, 155,762.87 and 72,073.68

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Solution

The fourth proportional to 112,964.27, 155,762.87 and 72,073.68 is: 99,380.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,964.27 : 155,762.87 = 72,073.68 : x
  2. Step 2: Convert to fraction form
    112,964.27/155,762.87 = 72,073.68/x
  3. Step 3: Cross multiply
    112,964.27x = 155,762.87 × 72,073.68
  4. Step 4: Simplify right side
    112,964.27x = 11,226,402,303.78
  5. Step 5: Solve for x
    x = 11,226,402,303.78/112,964.27
  6. Step 6: Final answer
    x = 99,380.12

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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.