Home / 137,294.04-189,443.76-76,867.20

Finding the Fourth Proportional to 137,294.04, 189,443.76 and 76,867.20

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Solution

The fourth proportional to 137,294.04, 189,443.76 and 76,867.20 is: 106,064.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,294.04 : 189,443.76 = 76,867.20 : x
  2. Step 2: Convert to fraction form
    137,294.04/189,443.76 = 76,867.20/x
  3. Step 3: Cross multiply
    137,294.04x = 189,443.76 × 76,867.20
  4. Step 4: Simplify right side
    137,294.04x = 14,562,011,388.67
  5. Step 5: Solve for x
    x = 14,562,011,388.67/137,294.04
  6. Step 6: Final answer
    x = 106,064.41

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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.