Home / 137,693.40-189,946.62-89,974.68

Finding the Fourth Proportional to 137,693.40, 189,946.62 and 89,974.68

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Solution

The fourth proportional to 137,693.40, 189,946.62 and 89,974.68 is: 124,119.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,693.40 : 189,946.62 = 89,974.68 : x
  2. Step 2: Convert to fraction form
    137,693.40/189,946.62 = 89,974.68/x
  3. Step 3: Cross multiply
    137,693.40x = 189,946.62 × 89,974.68
  4. Step 4: Simplify right side
    137,693.40x = 17,090,386,351.58
  5. Step 5: Solve for x
    x = 17,090,386,351.58/137,693.40
  6. Step 6: Final answer
    x = 124,119.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.