Home / 142,166.24-196,162.08-85,581.44

Finding the Fourth Proportional to 142,166.24, 196,162.08 and 85,581.44

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Solution

The fourth proportional to 142,166.24, 196,162.08 and 85,581.44 is: 118,085.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,166.24 : 196,162.08 = 85,581.44 : x
  2. Step 2: Convert to fraction form
    142,166.24/196,162.08 = 85,581.44/x
  3. Step 3: Cross multiply
    142,166.24x = 196,162.08 × 85,581.44
  4. Step 4: Simplify right side
    142,166.24x = 16,787,833,279.80
  5. Step 5: Solve for x
    x = 16,787,833,279.80/142,166.24
  6. Step 6: Final answer
    x = 118,085.93

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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.