Home / 156,919.98-216,543.60-85,298.52

Finding the Fourth Proportional to 156,919.98, 216,543.60 and 85,298.52

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Solution

The fourth proportional to 156,919.98, 216,543.60 and 85,298.52 is: 117,708.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,919.98 : 216,543.60 = 85,298.52 : x
  2. Step 2: Convert to fraction form
    156,919.98/216,543.60 = 85,298.52/x
  3. Step 3: Cross multiply
    156,919.98x = 216,543.60 × 85,298.52
  4. Step 4: Simplify right side
    156,919.98x = 18,470,848,595.47
  5. Step 5: Solve for x
    x = 18,470,848,595.47/156,919.98
  6. Step 6: Final answer
    x = 117,708.71

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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.