Home / 109,743.65-151,438.38-64,423.48

Finding the Fourth Proportional to 109,743.65, 151,438.38 and 64,423.48

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Solution

The fourth proportional to 109,743.65, 151,438.38 and 64,423.48 is: 88,899.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,743.65 : 151,438.38 = 64,423.48 : x
  2. Step 2: Convert to fraction form
    109,743.65/151,438.38 = 64,423.48/x
  3. Step 3: Cross multiply
    109,743.65x = 151,438.38 × 64,423.48
  4. Step 4: Simplify right side
    109,743.65x = 9,756,187,445.16
  5. Step 5: Solve for x
    x = 9,756,187,445.16/109,743.65
  6. Step 6: Final answer
    x = 88,899.79

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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.