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Finding the Fourth Proportional to 97,159.92, 145,739.90 and 75,005.64

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Solution

The fourth proportional to 97,159.92, 145,739.90 and 75,005.64 is: 112,508.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,159.92 : 145,739.90 = 75,005.64 : x
  2. Step 2: Convert to fraction form
    97,159.92/145,739.90 = 75,005.64/x
  3. Step 3: Cross multiply
    97,159.92x = 145,739.90 × 75,005.64
  4. Step 4: Simplify right side
    97,159.92x = 10,931,313,931.85
  5. Step 5: Solve for x
    x = 10,931,313,931.85/97,159.92
  6. Step 6: Final answer
    x = 112,508.48

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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.