Home / 109,486.56-151,079.68-64,155.52

Finding the Fourth Proportional to 109,486.56, 151,079.68 and 64,155.52

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Solution

The fourth proportional to 109,486.56, 151,079.68 and 64,155.52 is: 88,527.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,486.56 : 151,079.68 = 64,155.52 : x
  2. Step 2: Convert to fraction form
    109,486.56/151,079.68 = 64,155.52/x
  3. Step 3: Cross multiply
    109,486.56x = 151,079.68 × 64,155.52
  4. Step 4: Simplify right side
    109,486.56x = 9,692,595,431.83
  5. Step 5: Solve for x
    x = 9,692,595,431.83/109,486.56
  6. Step 6: Final answer
    x = 88,527.72

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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.