Home / 145,983.28-218,829.12-125,911.48

Finding the Fourth Proportional to 145,983.28, 218,829.12 and 125,911.48

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Solution

The fourth proportional to 145,983.28, 218,829.12 and 125,911.48 is: 188,741.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,983.28 : 218,829.12 = 125,911.48 : x
  2. Step 2: Convert to fraction form
    145,983.28/218,829.12 = 125,911.48/x
  3. Step 3: Cross multiply
    145,983.28x = 218,829.12 × 125,911.48
  4. Step 4: Simplify right side
    145,983.28x = 27,553,098,366.30
  5. Step 5: Solve for x
    x = 27,553,098,366.30/145,983.28
  6. Step 6: Final answer
    x = 188,741.47

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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.