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Finding the Fourth Proportional to 172,851.30, 259,276.95 and 73,124.10

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Solution

The fourth proportional to 172,851.30, 259,276.95 and 73,124.10 is: 109,686.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,851.30 : 259,276.95 = 73,124.10 : x
  2. Step 2: Convert to fraction form
    172,851.30/259,276.95 = 73,124.10/x
  3. Step 3: Cross multiply
    172,851.30x = 259,276.95 × 73,124.10
  4. Step 4: Simplify right side
    172,851.30x = 18,959,393,619.50
  5. Step 5: Solve for x
    x = 18,959,393,619.50/172,851.30
  6. Step 6: Final answer
    x = 109,686.15

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1.5x scale

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.