Home / 152,195.28-209,981.88-91,784.40

Finding the Fourth Proportional to 152,195.28, 209,981.88 and 91,784.40

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Solution

The fourth proportional to 152,195.28, 209,981.88 and 91,784.40 is: 126,633.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,195.28 : 209,981.88 = 91,784.40 : x
  2. Step 2: Convert to fraction form
    152,195.28/209,981.88 = 91,784.40/x
  3. Step 3: Cross multiply
    152,195.28x = 209,981.88 × 91,784.40
  4. Step 4: Simplify right side
    152,195.28x = 19,273,060,866.67
  5. Step 5: Solve for x
    x = 19,273,060,866.67/152,195.28
  6. Step 6: Final answer
    x = 126,633.76

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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.