Home / 161,715.20-242,572.80-154,889.60

Finding the Fourth Proportional to 161,715.20, 242,572.80 and 154,889.60

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Solution

The fourth proportional to 161,715.20, 242,572.80 and 154,889.60 is: 232,334.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,715.20 : 242,572.80 = 154,889.60 : x
  2. Step 2: Convert to fraction form
    161,715.20/242,572.80 = 154,889.60/x
  3. Step 3: Cross multiply
    161,715.20x = 242,572.80 × 154,889.60
  4. Step 4: Simplify right side
    161,715.20x = 37,572,003,962.88
  5. Step 5: Solve for x
    x = 37,572,003,962.88/161,715.20
  6. Step 6: Final answer
    x = 232,334.40

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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.