Home / 161,510.72-242,306.40-56,331.20

Finding the Fourth Proportional to 161,510.72, 242,306.40 and 56,331.20

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Solution

The fourth proportional to 161,510.72, 242,306.40 and 56,331.20 is: 84,510.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,510.72 : 242,306.40 = 56,331.20 : x
  2. Step 2: Convert to fraction form
    161,510.72/242,306.40 = 56,331.20/x
  3. Step 3: Cross multiply
    161,510.72x = 242,306.40 × 56,331.20
  4. Step 4: Simplify right side
    161,510.72x = 13,649,410,279.68
  5. Step 5: Solve for x
    x = 13,649,410,279.68/161,510.72
  6. Step 6: Final answer
    x = 84,510.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.