Home / 148,550.20-205,000.14-84,890.32

Finding the Fourth Proportional to 148,550.20, 205,000.14 and 84,890.32

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Solution

The fourth proportional to 148,550.20, 205,000.14 and 84,890.32 is: 117,149.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,550.20 : 205,000.14 = 84,890.32 : x
  2. Step 2: Convert to fraction form
    148,550.20/205,000.14 = 84,890.32/x
  3. Step 3: Cross multiply
    148,550.20x = 205,000.14 × 84,890.32
  4. Step 4: Simplify right side
    148,550.20x = 17,402,527,484.64
  5. Step 5: Solve for x
    x = 17,402,527,484.64/148,550.20
  6. Step 6: Final answer
    x = 117,149.14

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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.