Home / 102,500.80-153,767.04-43,336.72

Finding the Fourth Proportional to 102,500.80, 153,767.04 and 43,336.72

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Solution

The fourth proportional to 102,500.80, 153,767.04 and 43,336.72 is: 65,011.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,500.80 : 153,767.04 = 43,336.72 : x
  2. Step 2: Convert to fraction form
    102,500.80/153,767.04 = 43,336.72/x
  3. Step 3: Cross multiply
    102,500.80x = 153,767.04 × 43,336.72
  4. Step 4: Simplify right side
    102,500.80x = 6,663,759,157.71
  5. Step 5: Solve for x
    x = 6,663,759,157.71/102,500.80
  6. Step 6: Final answer
    x = 65,011.78

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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.