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Finding the Fourth Proportional to 155,123.73, 214,168.73 and 107,359.65

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Solution

The fourth proportional to 155,123.73, 214,168.73 and 107,359.65 is: 148,224.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,123.73 : 214,168.73 = 107,359.65 : x
  2. Step 2: Convert to fraction form
    155,123.73/214,168.73 = 107,359.65/x
  3. Step 3: Cross multiply
    155,123.73x = 214,168.73 × 107,359.65
  4. Step 4: Simplify right side
    155,123.73x = 22,993,079,356.95
  5. Step 5: Solve for x
    x = 22,993,079,356.95/155,123.73
  6. Step 6: Final answer
    x = 148,224.13

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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.