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Finding the Fourth Proportional to 132,609.61, 183,005.13 and 72,184.15

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Solution

The fourth proportional to 132,609.61, 183,005.13 and 72,184.15 is: 99,616.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,609.61 : 183,005.13 = 72,184.15 : x
  2. Step 2: Convert to fraction form
    132,609.61/183,005.13 = 72,184.15/x
  3. Step 3: Cross multiply
    132,609.61x = 183,005.13 × 72,184.15
  4. Step 4: Simplify right side
    132,609.61x = 13,210,069,754.69
  5. Step 5: Solve for x
    x = 13,210,069,754.69/132,609.61
  6. Step 6: Final answer
    x = 99,616.23

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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.