Home / 113,774.28-156,963.60-71,317.32

Finding the Fourth Proportional to 113,774.28, 156,963.60 and 71,317.32

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Solution

The fourth proportional to 113,774.28, 156,963.60 and 71,317.32 is: 98,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,774.28 : 156,963.60 = 71,317.32 : x
  2. Step 2: Convert to fraction form
    113,774.28/156,963.60 = 71,317.32/x
  3. Step 3: Cross multiply
    113,774.28x = 156,963.60 × 71,317.32
  4. Step 4: Simplify right side
    113,774.28x = 11,194,223,289.55
  5. Step 5: Solve for x
    x = 11,194,223,289.55/113,774.28
  6. Step 6: Final answer
    x = 98,389.75

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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.