Home / 243,158.28-365,378.86-130,921.48

Finding the Fourth Proportional to 243,158.28, 365,378.86 and 130,921.48

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Solution

The fourth proportional to 243,158.28, 365,378.86 and 130,921.48 is: 196,727.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,158.28 : 365,378.86 = 130,921.48 : x
  2. Step 2: Convert to fraction form
    243,158.28/365,378.86 = 130,921.48/x
  3. Step 3: Cross multiply
    243,158.28x = 365,378.86 × 130,921.48
  4. Step 4: Simplify right side
    243,158.28x = 47,835,941,111.91
  5. Step 5: Solve for x
    x = 47,835,941,111.91/243,158.28
  6. Step 6: Final answer
    x = 196,727.58

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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.