Home / 159,262.40-219,784.96-87,641.76

Finding the Fourth Proportional to 159,262.40, 219,784.96 and 87,641.76

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Solution

The fourth proportional to 159,262.40, 219,784.96 and 87,641.76 is: 120,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,262.40 : 219,784.96 = 87,641.76 : x
  2. Step 2: Convert to fraction form
    159,262.40/219,784.96 = 87,641.76/x
  3. Step 3: Cross multiply
    159,262.40x = 219,784.96 × 87,641.76
  4. Step 4: Simplify right side
    159,262.40x = 19,262,340,715.93
  5. Step 5: Solve for x
    x = 19,262,340,715.93/159,262.40
  6. Step 6: Final answer
    x = 120,947.20

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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.