Home / 142,569.83-196,733.03-85,197.76

Finding the Fourth Proportional to 142,569.83, 196,733.03 and 85,197.76

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Solution

The fourth proportional to 142,569.83, 196,733.03 and 85,197.76 is: 117,564.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,569.83 : 196,733.03 = 85,197.76 : x
  2. Step 2: Convert to fraction form
    142,569.83/196,733.03 = 85,197.76/x
  3. Step 3: Cross multiply
    142,569.83x = 196,733.03 × 85,197.76
  4. Step 4: Simplify right side
    142,569.83x = 16,761,213,613.43
  5. Step 5: Solve for x
    x = 16,761,213,613.43/142,569.83
  6. Step 6: Final answer
    x = 117,564.94

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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.