Home / 175,719.72-242,510.58-100,279.56

Finding the Fourth Proportional to 175,719.72, 242,510.58 and 100,279.56

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Solution

The fourth proportional to 175,719.72, 242,510.58 and 100,279.56 is: 138,395.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,719.72 : 242,510.58 = 100,279.56 : x
  2. Step 2: Convert to fraction form
    175,719.72/242,510.58 = 100,279.56/x
  3. Step 3: Cross multiply
    175,719.72x = 242,510.58 × 100,279.56
  4. Step 4: Simplify right side
    175,719.72x = 24,318,854,257.74
  5. Step 5: Solve for x
    x = 24,318,854,257.74/175,719.72
  6. Step 6: Final answer
    x = 138,395.70

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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.