Home / 138,070.10-207,107.72-43,298.18

Finding the Fourth Proportional to 138,070.10, 207,107.72 and 43,298.18

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Solution

The fourth proportional to 138,070.10, 207,107.72 and 43,298.18 is: 64,948.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,070.10 : 207,107.72 = 43,298.18 : x
  2. Step 2: Convert to fraction form
    138,070.10/207,107.72 = 43,298.18/x
  3. Step 3: Cross multiply
    138,070.10x = 207,107.72 × 43,298.18
  4. Step 4: Simplify right side
    138,070.10x = 8,967,387,026.94
  5. Step 5: Solve for x
    x = 8,967,387,026.94/138,070.10
  6. Step 6: Final answer
    x = 64,948.07

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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.