Home / 137,032.20-205,548.30-89,723.40

Finding the Fourth Proportional to 137,032.20, 205,548.30 and 89,723.40

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Solution

The fourth proportional to 137,032.20, 205,548.30 and 89,723.40 is: 134,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,032.20 : 205,548.30 = 89,723.40 : x
  2. Step 2: Convert to fraction form
    137,032.20/205,548.30 = 89,723.40/x
  3. Step 3: Cross multiply
    137,032.20x = 205,548.30 × 89,723.40
  4. Step 4: Simplify right side
    137,032.20x = 18,442,492,340.22
  5. Step 5: Solve for x
    x = 18,442,492,340.22/137,032.20
  6. Step 6: Final answer
    x = 134,585.10

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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.