Home / 137,246.20-189,356.59-76,807.24

Finding the Fourth Proportional to 137,246.20, 189,356.59 and 76,807.24

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Solution

The fourth proportional to 137,246.20, 189,356.59 and 76,807.24 is: 105,969.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,246.20 : 189,356.59 = 76,807.24 : x
  2. Step 2: Convert to fraction form
    137,246.20/189,356.59 = 76,807.24/x
  3. Step 3: Cross multiply
    137,246.20x = 189,356.59 × 76,807.24
  4. Step 4: Simplify right side
    137,246.20x = 14,543,957,053.71
  5. Step 5: Solve for x
    x = 14,543,957,053.71/137,246.20
  6. Step 6: Final answer
    x = 105,969.83

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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.