Home / 159,528.43-220,150.70-87,911.01

Finding the Fourth Proportional to 159,528.43, 220,150.70 and 87,911.01

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Solution

The fourth proportional to 159,528.43, 220,150.70 and 87,911.01 is: 121,318.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,528.43 : 220,150.70 = 87,911.01 : x
  2. Step 2: Convert to fraction form
    159,528.43/220,150.70 = 87,911.01/x
  3. Step 3: Cross multiply
    159,528.43x = 220,150.70 × 87,911.01
  4. Step 4: Simplify right side
    159,528.43x = 19,353,670,058.61
  5. Step 5: Solve for x
    x = 19,353,670,058.61/159,528.43
  6. Step 6: Final answer
    x = 121,318.00

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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.