Home / 155,972.76-215,190.06-127,242.76

Finding the Fourth Proportional to 155,972.76, 215,190.06 and 127,242.76

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Solution

The fourth proportional to 155,972.76, 215,190.06 and 127,242.76 is: 175,552.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,972.76 : 215,190.06 = 127,242.76 : x
  2. Step 2: Convert to fraction form
    155,972.76/215,190.06 = 127,242.76/x
  3. Step 3: Cross multiply
    155,972.76x = 215,190.06 × 127,242.76
  4. Step 4: Simplify right side
    155,972.76x = 27,381,376,302.88
  5. Step 5: Solve for x
    x = 27,381,376,302.88/155,972.76
  6. Step 6: Final answer
    x = 175,552.29

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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.