Home / 96,737.20-145,105.80-76,908.40

Finding the Fourth Proportional to 96,737.20, 145,105.80 and 76,908.40

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Solution

The fourth proportional to 96,737.20, 145,105.80 and 76,908.40 is: 115,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,737.20 : 145,105.80 = 76,908.40 : x
  2. Step 2: Convert to fraction form
    96,737.20/145,105.80 = 76,908.40/x
  3. Step 3: Cross multiply
    96,737.20x = 145,105.80 × 76,908.40
  4. Step 4: Simplify right side
    96,737.20x = 11,159,854,908.72
  5. Step 5: Solve for x
    x = 11,159,854,908.72/96,737.20
  6. Step 6: Final answer
    x = 115,362.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.