Home / 138,602.08-207,881.52-45,107.20

Finding the Fourth Proportional to 138,602.08, 207,881.52 and 45,107.20

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Solution

The fourth proportional to 138,602.08, 207,881.52 and 45,107.20 is: 67,653.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,602.08 : 207,881.52 = 45,107.20 : x
  2. Step 2: Convert to fraction form
    138,602.08/207,881.52 = 45,107.20/x
  3. Step 3: Cross multiply
    138,602.08x = 207,881.52 × 45,107.20
  4. Step 4: Simplify right side
    138,602.08x = 9,376,953,298.94
  5. Step 5: Solve for x
    x = 9,376,953,298.94/138,602.08
  6. Step 6: Final answer
    x = 67,653.77

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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.