Home / 176,121.28-243,047.34-100,671.40

Finding the Fourth Proportional to 176,121.28, 243,047.34 and 100,671.40

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Solution

The fourth proportional to 176,121.28, 243,047.34 and 100,671.40 is: 138,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,121.28 : 243,047.34 = 100,671.40 : x
  2. Step 2: Convert to fraction form
    176,121.28/243,047.34 = 100,671.40/x
  3. Step 3: Cross multiply
    176,121.28x = 243,047.34 × 100,671.40
  4. Step 4: Simplify right side
    176,121.28x = 24,467,915,984.08
  5. Step 5: Solve for x
    x = 24,467,915,984.08/176,121.28
  6. Step 6: Final answer
    x = 138,926.52

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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.