Home / 137,624.49-189,920.67-77,194.95

Finding the Fourth Proportional to 137,624.49, 189,920.67 and 77,194.95

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Solution

The fourth proportional to 137,624.49, 189,920.67 and 77,194.95 is: 106,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,624.49 : 189,920.67 = 77,194.95 : x
  2. Step 2: Convert to fraction form
    137,624.49/189,920.67 = 77,194.95/x
  3. Step 3: Cross multiply
    137,624.49x = 189,920.67 × 77,194.95
  4. Step 4: Simplify right side
    137,624.49x = 14,660,916,808.42
  5. Step 5: Solve for x
    x = 14,660,916,808.42/137,624.49
  6. Step 6: Final answer
    x = 106,528.40

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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.