Home / 176,013.20-242,740.68-138,221.84

Finding the Fourth Proportional to 176,013.20, 242,740.68 and 138,221.84

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Solution

The fourth proportional to 176,013.20, 242,740.68 and 138,221.84 is: 190,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,013.20 : 242,740.68 = 138,221.84 : x
  2. Step 2: Convert to fraction form
    176,013.20/242,740.68 = 138,221.84/x
  3. Step 3: Cross multiply
    176,013.20x = 242,740.68 × 138,221.84
  4. Step 4: Simplify right side
    176,013.20x = 33,552,063,432.45
  5. Step 5: Solve for x
    x = 33,552,063,432.45/176,013.20
  6. Step 6: Final answer
    x = 190,622.43

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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.