Home / 137,294.02-189,443.78-76,867.20

Finding the Fourth Proportional to 137,294.02, 189,443.78 and 76,867.20

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Solution

The fourth proportional to 137,294.02, 189,443.78 and 76,867.20 is: 106,064.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,294.02 : 189,443.78 = 76,867.20 : x
  2. Step 2: Convert to fraction form
    137,294.02/189,443.78 = 76,867.20/x
  3. Step 3: Cross multiply
    137,294.02x = 189,443.78 × 76,867.20
  4. Step 4: Simplify right side
    137,294.02x = 14,562,012,926.02
  5. Step 5: Solve for x
    x = 14,562,012,926.02/137,294.02
  6. Step 6: Final answer
    x = 106,064.44

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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.