Home / 156,748.40-216,311.28-88,763.60

Finding the Fourth Proportional to 156,748.40, 216,311.28 and 88,763.60

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Solution

The fourth proportional to 156,748.40, 216,311.28 and 88,763.60 is: 122,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,748.40 : 216,311.28 = 88,763.60 : x
  2. Step 2: Convert to fraction form
    156,748.40/216,311.28 = 88,763.60/x
  3. Step 3: Cross multiply
    156,748.40x = 216,311.28 × 88,763.60
  4. Step 4: Simplify right side
    156,748.40x = 19,200,567,933.41
  5. Step 5: Solve for x
    x = 19,200,567,933.41/156,748.40
  6. Step 6: Final answer
    x = 122,492.91

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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.