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Finding the Fourth Proportional to 132,007.20, 197,881.20 and 65,457.60

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Solution

The fourth proportional to 132,007.20, 197,881.20 and 65,457.60 is: 98,122.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,007.20 : 197,881.20 = 65,457.60 : x
  2. Step 2: Convert to fraction form
    132,007.20/197,881.20 = 65,457.60/x
  3. Step 3: Cross multiply
    132,007.20x = 197,881.20 × 65,457.60
  4. Step 4: Simplify right side
    132,007.20x = 12,952,828,437.12
  5. Step 5: Solve for x
    x = 12,952,828,437.12/132,007.20
  6. Step 6: Final answer
    x = 98,122.14

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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.