Home / 147,047.20-219,987.60-127,542.40

Finding the Fourth Proportional to 147,047.20, 219,987.60 and 127,542.40

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Solution

The fourth proportional to 147,047.20, 219,987.60 and 127,542.40 is: 190,807.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,047.20 : 219,987.60 = 127,542.40 : x
  2. Step 2: Convert to fraction form
    147,047.20/219,987.60 = 127,542.40/x
  3. Step 3: Cross multiply
    147,047.20x = 219,987.60 × 127,542.40
  4. Step 4: Simplify right side
    147,047.20x = 28,057,746,474.24
  5. Step 5: Solve for x
    x = 28,057,746,474.24/147,047.20
  6. Step 6: Final answer
    x = 190,807.76

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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.