Home / 156,690.52-216,233.37-85,070.86

Finding the Fourth Proportional to 156,690.52, 216,233.37 and 85,070.86

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Solution

The fourth proportional to 156,690.52, 216,233.37 and 85,070.86 is: 117,398.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,690.52 : 216,233.37 = 85,070.86 : x
  2. Step 2: Convert to fraction form
    156,690.52/216,233.37 = 85,070.86/x
  3. Step 3: Cross multiply
    156,690.52x = 216,233.37 × 85,070.86
  4. Step 4: Simplify right side
    156,690.52x = 18,395,158,746.60
  5. Step 5: Solve for x
    x = 18,395,158,746.60/156,690.52
  6. Step 6: Final answer
    x = 117,398.03

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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.