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Finding the Fourth Proportional to 162,139.24, 241,979.09 and 157,940.20

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Solution

The fourth proportional to 162,139.24, 241,979.09 and 157,940.20 is: 235,712.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,139.24 : 241,979.09 = 157,940.20 : x
  2. Step 2: Convert to fraction form
    162,139.24/241,979.09 = 157,940.20/x
  3. Step 3: Cross multiply
    162,139.24x = 241,979.09 × 157,940.20
  4. Step 4: Simplify right side
    162,139.24x = 38,218,225,870.42
  5. Step 5: Solve for x
    x = 38,218,225,870.42/162,139.24
  6. Step 6: Final answer
    x = 235,712.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.