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Finding the Fourth Proportional to 109,649.96, 151,318.20 and 64,328.74

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Solution

The fourth proportional to 109,649.96, 151,318.20 and 64,328.74 is: 88,774.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,649.96 : 151,318.20 = 64,328.74 : x
  2. Step 2: Convert to fraction form
    109,649.96/151,318.20 = 64,328.74/x
  3. Step 3: Cross multiply
    109,649.96x = 151,318.20 × 64,328.74
  4. Step 4: Simplify right side
    109,649.96x = 9,734,109,145.07
  5. Step 5: Solve for x
    x = 9,734,109,145.07/109,649.96
  6. Step 6: Final answer
    x = 88,774.40

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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.