Home / 156,941.13-216,580.59-85,319.58

Finding the Fourth Proportional to 156,941.13, 216,580.59 and 85,319.58

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Solution

The fourth proportional to 156,941.13, 216,580.59 and 85,319.58 is: 117,742.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,941.13 : 216,580.59 = 85,319.58 : x
  2. Step 2: Convert to fraction form
    156,941.13/216,580.59 = 85,319.58/x
  3. Step 3: Cross multiply
    156,941.13x = 216,580.59 × 85,319.58
  4. Step 4: Simplify right side
    156,941.13x = 18,478,564,974.95
  5. Step 5: Solve for x
    x = 18,478,564,974.95/156,941.13
  6. Step 6: Final answer
    x = 117,742.02

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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.