Home / 159,344.35-219,886.85-87,710.38

Finding the Fourth Proportional to 159,344.35, 219,886.85 and 87,710.38

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Solution

The fourth proportional to 159,344.35, 219,886.85 and 87,710.38 is: 121,035.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,344.35 : 219,886.85 = 87,710.38 : x
  2. Step 2: Convert to fraction form
    159,344.35/219,886.85 = 87,710.38/x
  3. Step 3: Cross multiply
    159,344.35x = 219,886.85 × 87,710.38
  4. Step 4: Simplify right side
    159,344.35x = 19,286,358,840.06
  5. Step 5: Solve for x
    x = 19,286,358,840.06/159,344.35
  6. Step 6: Final answer
    x = 121,035.73

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1.5x scale

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.