Home / 156,948.60-216,586.70-85,328

Finding the Fourth Proportional to 156,948.60, 216,586.70 and 85,328

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Solution

The fourth proportional to 156,948.60, 216,586.70 and 85,328 is: 117,751.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,948.60 : 216,586.70 = 85,328 : x
  2. Step 2: Convert to fraction form
    156,948.60/216,586.70 = 85,328/x
  3. Step 3: Cross multiply
    156,948.60x = 216,586.70 × 85,328
  4. Step 4: Simplify right side
    156,948.60x = 18,480,909,937.60
  5. Step 5: Solve for x
    x = 18,480,909,937.60/156,948.60
  6. Step 6: Final answer
    x = 117,751.35

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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.