Home / 176,721.36-243,892.68-131,931.60

Finding the Fourth Proportional to 176,721.36, 243,892.68 and 131,931.60

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Solution

The fourth proportional to 176,721.36, 243,892.68 and 131,931.60 is: 182,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,721.36 : 243,892.68 = 131,931.60 : x
  2. Step 2: Convert to fraction form
    176,721.36/243,892.68 = 131,931.60/x
  3. Step 3: Cross multiply
    176,721.36x = 243,892.68 × 131,931.60
  4. Step 4: Simplify right side
    176,721.36x = 32,177,151,500.69
  5. Step 5: Solve for x
    x = 32,177,151,500.69/176,721.36
  6. Step 6: Final answer
    x = 182,078.45

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1.5x scale

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.