Home / 109,742.65-151,437-64,422.48

Finding the Fourth Proportional to 109,742.65, 151,437 and 64,422.48

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Solution

The fourth proportional to 109,742.65, 151,437 and 64,422.48 is: 88,898.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,742.65 : 151,437 = 64,422.48 : x
  2. Step 2: Convert to fraction form
    109,742.65/151,437 = 64,422.48/x
  3. Step 3: Cross multiply
    109,742.65x = 151,437 × 64,422.48
  4. Step 4: Simplify right side
    109,742.65x = 9,755,947,103.76
  5. Step 5: Solve for x
    x = 9,755,947,103.76/109,742.65
  6. Step 6: Final answer
    x = 88,898.41

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1.5x scale

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.