Home / 109,627.63-151,275.20-61,871.75

Finding the Fourth Proportional to 109,627.63, 151,275.20 and 61,871.75

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Solution

The fourth proportional to 109,627.63, 151,275.20 and 61,871.75 is: 85,376.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,627.63 : 151,275.20 = 61,871.75 : x
  2. Step 2: Convert to fraction form
    109,627.63/151,275.20 = 61,871.75/x
  3. Step 3: Cross multiply
    109,627.63x = 151,275.20 × 61,871.75
  4. Step 4: Simplify right side
    109,627.63x = 9,359,660,857.15
  5. Step 5: Solve for x
    x = 9,359,660,857.15/109,627.63
  6. Step 6: Final answer
    x = 85,376.84

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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.