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Finding the Fourth Proportional to 156,750.40, 216,314.04 and 88,765.60

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Solution

The fourth proportional to 156,750.40, 216,314.04 and 88,765.60 is: 122,495.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,750.40 : 216,314.04 = 88,765.60 : x
  2. Step 2: Convert to fraction form
    156,750.40/216,314.04 = 88,765.60/x
  3. Step 3: Cross multiply
    156,750.40x = 216,314.04 × 88,765.60
  4. Step 4: Simplify right side
    156,750.40x = 19,201,245,549.02
  5. Step 5: Solve for x
    x = 19,201,245,549.02/156,750.40
  6. Step 6: Final answer
    x = 122,495.67

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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.