Home / 132,117.18-182,368.98-78,402.20

Finding the Fourth Proportional to 132,117.18, 182,368.98 and 78,402.20

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Solution

The fourth proportional to 132,117.18, 182,368.98 and 78,402.20 is: 108,223.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,117.18 : 182,368.98 = 78,402.20 : x
  2. Step 2: Convert to fraction form
    132,117.18/182,368.98 = 78,402.20/x
  3. Step 3: Cross multiply
    132,117.18x = 182,368.98 × 78,402.20
  4. Step 4: Simplify right side
    132,117.18x = 14,298,128,331.91
  5. Step 5: Solve for x
    x = 14,298,128,331.91/132,117.18
  6. Step 6: Final answer
    x = 108,223.08

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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.