Home / 137,034.18-205,400.34-89,629.74

Finding the Fourth Proportional to 137,034.18, 205,400.34 and 89,629.74

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Solution

The fourth proportional to 137,034.18, 205,400.34 and 89,629.74 is: 134,345.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,034.18 : 205,400.34 = 89,629.74 : x
  2. Step 2: Convert to fraction form
    137,034.18/205,400.34 = 89,629.74/x
  3. Step 3: Cross multiply
    137,034.18x = 205,400.34 × 89,629.74
  4. Step 4: Simplify right side
    137,034.18x = 18,409,979,070.11
  5. Step 5: Solve for x
    x = 18,409,979,070.11/137,034.18
  6. Step 6: Final answer
    x = 134,345.89

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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.