Home / 137,320.32-206,009.87-42,548.40

Finding the Fourth Proportional to 137,320.32, 206,009.87 and 42,548.40

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Solution

The fourth proportional to 137,320.32, 206,009.87 and 42,548.40 is: 63,831.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,320.32 : 206,009.87 = 42,548.40 : x
  2. Step 2: Convert to fraction form
    137,320.32/206,009.87 = 42,548.40/x
  3. Step 3: Cross multiply
    137,320.32x = 206,009.87 × 42,548.40
  4. Step 4: Simplify right side
    137,320.32x = 8,765,390,139.97
  5. Step 5: Solve for x
    x = 8,765,390,139.97/137,320.32
  6. Step 6: Final answer
    x = 63,831.70

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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.