Home / 191,414.95-287,275.51-86,242.12

Finding the Fourth Proportional to 191,414.95, 287,275.51 and 86,242.12

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Solution

The fourth proportional to 191,414.95, 287,275.51 and 86,242.12 is: 129,432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,414.95 : 287,275.51 = 86,242.12 : x
  2. Step 2: Convert to fraction form
    191,414.95/287,275.51 = 86,242.12/x
  3. Step 3: Cross multiply
    191,414.95x = 287,275.51 × 86,242.12
  4. Step 4: Simplify right side
    191,414.95x = 24,775,248,396.10
  5. Step 5: Solve for x
    x = 24,775,248,396.10/191,414.95
  6. Step 6: Final answer
    x = 129,432.15

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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.