Home / 137,309.04-189,464.46-76,882.20

Finding the Fourth Proportional to 137,309.04, 189,464.46 and 76,882.20

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Solution

The fourth proportional to 137,309.04, 189,464.46 and 76,882.20 is: 106,085.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,309.04 : 189,464.46 = 76,882.20 : x
  2. Step 2: Convert to fraction form
    137,309.04/189,464.46 = 76,882.20/x
  3. Step 3: Cross multiply
    137,309.04x = 189,464.46 × 76,882.20
  4. Step 4: Simplify right side
    137,309.04x = 14,566,444,506.61
  5. Step 5: Solve for x
    x = 14,566,444,506.61/137,309.04
  6. Step 6: Final answer
    x = 106,085.11

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1.5x scale

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.