Home / 159,882.12-220,637.81-87,285.13

Finding the Fourth Proportional to 159,882.12, 220,637.81 and 87,285.13

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Solution

The fourth proportional to 159,882.12, 220,637.81 and 87,285.13 is: 120,453.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,882.12 : 220,637.81 = 87,285.13 : x
  2. Step 2: Convert to fraction form
    159,882.12/220,637.81 = 87,285.13/x
  3. Step 3: Cross multiply
    159,882.12x = 220,637.81 × 87,285.13
  4. Step 4: Simplify right side
    159,882.12x = 19,258,399,492.34
  5. Step 5: Solve for x
    x = 19,258,399,492.34/159,882.12
  6. Step 6: Final answer
    x = 120,453.74

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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.