Home / 151,127.84-208,612.56-129,821.60

Finding the Fourth Proportional to 151,127.84, 208,612.56 and 129,821.60

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Solution

The fourth proportional to 151,127.84, 208,612.56 and 129,821.60 is: 179,202.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,127.84 : 208,612.56 = 129,821.60 : x
  2. Step 2: Convert to fraction form
    151,127.84/208,612.56 = 129,821.60/x
  3. Step 3: Cross multiply
    151,127.84x = 208,612.56 × 129,821.60
  4. Step 4: Simplify right side
    151,127.84x = 27,082,416,319.30
  5. Step 5: Solve for x
    x = 27,082,416,319.30/151,127.84
  6. Step 6: Final answer
    x = 179,202.03

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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.