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Finding the Fourth Proportional to 130,358.48, 179,872.80 and 75,922.16

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Solution

The fourth proportional to 130,358.48, 179,872.80 and 75,922.16 is: 104,759.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,358.48 : 179,872.80 = 75,922.16 : x
  2. Step 2: Convert to fraction form
    130,358.48/179,872.80 = 75,922.16/x
  3. Step 3: Cross multiply
    130,358.48x = 179,872.80 × 75,922.16
  4. Step 4: Simplify right side
    130,358.48x = 13,656,331,501.25
  5. Step 5: Solve for x
    x = 13,656,331,501.25/130,358.48
  6. Step 6: Final answer
    x = 104,759.82

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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.