Home / 138,719.31-208,088.18-48,751.14

Finding the Fourth Proportional to 138,719.31, 208,088.18 and 48,751.14

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Solution

The fourth proportional to 138,719.31, 208,088.18 and 48,751.14 is: 73,129.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,719.31 : 208,088.18 = 48,751.14 : x
  2. Step 2: Convert to fraction form
    138,719.31/208,088.18 = 48,751.14/x
  3. Step 3: Cross multiply
    138,719.31x = 208,088.18 × 48,751.14
  4. Step 4: Simplify right side
    138,719.31x = 10,144,534,955.08
  5. Step 5: Solve for x
    x = 10,144,534,955.08/138,719.31
  6. Step 6: Final answer
    x = 73,129.94

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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.