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Finding the Fourth Proportional to 123,656.70, 185,490.45 and 40,550.70

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Solution

The fourth proportional to 123,656.70, 185,490.45 and 40,550.70 is: 60,827.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,656.70 : 185,490.45 = 40,550.70 : x
  2. Step 2: Convert to fraction form
    123,656.70/185,490.45 = 40,550.70/x
  3. Step 3: Cross multiply
    123,656.70x = 185,490.45 × 40,550.70
  4. Step 4: Simplify right side
    123,656.70x = 7,521,767,590.82
  5. Step 5: Solve for x
    x = 7,521,767,590.82/123,656.70
  6. Step 6: Final answer
    x = 60,827.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.