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Finding the Fourth Proportional to 130,385.97, 179,944.07 and 73,024.40

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Solution

The fourth proportional to 130,385.97, 179,944.07 and 73,024.40 is: 100,780.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,385.97 : 179,944.07 = 73,024.40 : x
  2. Step 2: Convert to fraction form
    130,385.97/179,944.07 = 73,024.40/x
  3. Step 3: Cross multiply
    130,385.97x = 179,944.07 × 73,024.40
  4. Step 4: Simplify right side
    130,385.97x = 13,140,307,830.05
  5. Step 5: Solve for x
    x = 13,140,307,830.05/130,385.97
  6. Step 6: Final answer
    x = 100,780.07

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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.