Home / 132,531.47-182,968.85-87,340.76

Finding the Fourth Proportional to 132,531.47, 182,968.85 and 87,340.76

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Solution

The fourth proportional to 132,531.47, 182,968.85 and 87,340.76 is: 120,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,531.47 : 182,968.85 = 87,340.76 : x
  2. Step 2: Convert to fraction form
    132,531.47/182,968.85 = 87,340.76/x
  3. Step 3: Cross multiply
    132,531.47x = 182,968.85 × 87,340.76
  4. Step 4: Simplify right side
    132,531.47x = 15,980,637,978.62
  5. Step 5: Solve for x
    x = 15,980,637,978.62/132,531.47
  6. Step 6: Final answer
    x = 120,579.95

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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.