Home / 159,118.23-219,588.81-87,503.70

Finding the Fourth Proportional to 159,118.23, 219,588.81 and 87,503.70

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Solution

The fourth proportional to 159,118.23, 219,588.81 and 87,503.70 is: 120,758.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,118.23 : 219,588.81 = 87,503.70 : x
  2. Step 2: Convert to fraction form
    159,118.23/219,588.81 = 87,503.70/x
  3. Step 3: Cross multiply
    159,118.23x = 219,588.81 × 87,503.70
  4. Step 4: Simplify right side
    159,118.23x = 19,214,833,353.60
  5. Step 5: Solve for x
    x = 19,214,833,353.60/159,118.23
  6. Step 6: Final answer
    x = 120,758.21

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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.