Home / 137,359.08-189,559.74-76,929.60

Finding the Fourth Proportional to 137,359.08, 189,559.74 and 76,929.60

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Solution

The fourth proportional to 137,359.08, 189,559.74 and 76,929.60 is: 106,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,359.08 : 189,559.74 = 76,929.60 : x
  2. Step 2: Convert to fraction form
    137,359.08/189,559.74 = 76,929.60/x
  3. Step 3: Cross multiply
    137,359.08x = 189,559.74 × 76,929.60
  4. Step 4: Simplify right side
    137,359.08x = 14,582,754,974.30
  5. Step 5: Solve for x
    x = 14,582,754,974.30/137,359.08
  6. Step 6: Final answer
    x = 106,165.21

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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.