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Finding the Fourth Proportional to 172,427.92, 237,946.14 and 99,820.74

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Solution

The fourth proportional to 172,427.92, 237,946.14 and 99,820.74 is: 137,750.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,427.92 : 237,946.14 = 99,820.74 : x
  2. Step 2: Convert to fraction form
    172,427.92/237,946.14 = 99,820.74/x
  3. Step 3: Cross multiply
    172,427.92x = 237,946.14 × 99,820.74
  4. Step 4: Simplify right side
    172,427.92x = 23,751,959,774.94
  5. Step 5: Solve for x
    x = 23,751,959,774.94/172,427.92
  6. Step 6: Final answer
    x = 137,750.08

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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.