Home / 176,744.28-243,905.16-105,122.72

Finding the Fourth Proportional to 176,744.28, 243,905.16 and 105,122.72

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Solution

The fourth proportional to 176,744.28, 243,905.16 and 105,122.72 is: 145,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,744.28 : 243,905.16 = 105,122.72 : x
  2. Step 2: Convert to fraction form
    176,744.28/243,905.16 = 105,122.72/x
  3. Step 3: Cross multiply
    176,744.28x = 243,905.16 × 105,122.72
  4. Step 4: Simplify right side
    176,744.28x = 25,639,973,841.24
  5. Step 5: Solve for x
    x = 25,639,973,841.24/176,744.28
  6. Step 6: Final answer
    x = 145,068.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.