Home / 156,742.60-216,329.22-88,763.08

Finding the Fourth Proportional to 156,742.60, 216,329.22 and 88,763.08

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Solution

The fourth proportional to 156,742.60, 216,329.22 and 88,763.08 is: 122,506.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,742.60 : 216,329.22 = 88,763.08 : x
  2. Step 2: Convert to fraction form
    156,742.60/216,329.22 = 88,763.08/x
  3. Step 3: Cross multiply
    156,742.60x = 216,329.22 × 88,763.08
  4. Step 4: Simplify right side
    156,742.60x = 19,202,047,861.20
  5. Step 5: Solve for x
    x = 19,202,047,861.20/156,742.60
  6. Step 6: Final answer
    x = 122,506.89

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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.