Home / 155,091.60-231,586.80-123,143.17

Finding the Fourth Proportional to 155,091.60, 231,586.80 and 123,143.17

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Solution

The fourth proportional to 155,091.60, 231,586.80 and 123,143.17 is: 183,880.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,091.60 : 231,586.80 = 123,143.17 : x
  2. Step 2: Convert to fraction form
    155,091.60/231,586.80 = 123,143.17/x
  3. Step 3: Cross multiply
    155,091.60x = 231,586.80 × 123,143.17
  4. Step 4: Simplify right side
    155,091.60x = 28,518,332,682.16
  5. Step 5: Solve for x
    x = 28,518,332,682.16/155,091.60
  6. Step 6: Final answer
    x = 183,880.58

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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.