Home / 156,742.85-235,114.28-109,503.65

Finding the Fourth Proportional to 156,742.85, 235,114.28 and 109,503.65

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Solution

The fourth proportional to 156,742.85, 235,114.28 and 109,503.65 is: 164,255.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,742.85 : 235,114.28 = 109,503.65 : x
  2. Step 2: Convert to fraction form
    156,742.85/235,114.28 = 109,503.65/x
  3. Step 3: Cross multiply
    156,742.85x = 235,114.28 × 109,503.65
  4. Step 4: Simplify right side
    156,742.85x = 25,745,871,827.12
  5. Step 5: Solve for x
    x = 25,745,871,827.12/156,742.85
  6. Step 6: Final answer
    x = 164,255.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.