Home / 132,035.40-182,214.90-78,352.20

Finding the Fourth Proportional to 132,035.40, 182,214.90 and 78,352.20

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Solution

The fourth proportional to 132,035.40, 182,214.90 and 78,352.20 is: 108,129.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,035.40 : 182,214.90 = 78,352.20 : x
  2. Step 2: Convert to fraction form
    132,035.40/182,214.90 = 78,352.20/x
  3. Step 3: Cross multiply
    132,035.40x = 182,214.90 × 78,352.20
  4. Step 4: Simplify right side
    132,035.40x = 14,276,938,287.78
  5. Step 5: Solve for x
    x = 14,276,938,287.78/132,035.40
  6. Step 6: Final answer
    x = 108,129.62

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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.