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Finding the Fourth Proportional to 130,065.63, 179,505.17 and 73,480.65

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Solution

The fourth proportional to 130,065.63, 179,505.17 and 73,480.65 is: 101,411.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,065.63 : 179,505.17 = 73,480.65 : x
  2. Step 2: Convert to fraction form
    130,065.63/179,505.17 = 73,480.65/x
  3. Step 3: Cross multiply
    130,065.63x = 179,505.17 × 73,480.65
  4. Step 4: Simplify right side
    130,065.63x = 13,190,156,569.96
  5. Step 5: Solve for x
    x = 13,190,156,569.96/130,065.63
  6. Step 6: Final answer
    x = 101,411.55

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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.