Home / 159,429.16-220,012.50-87,809.32

Finding the Fourth Proportional to 159,429.16, 220,012.50 and 87,809.32

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Solution

The fourth proportional to 159,429.16, 220,012.50 and 87,809.32 is: 121,177.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,429.16 : 220,012.50 = 87,809.32 : x
  2. Step 2: Convert to fraction form
    159,429.16/220,012.50 = 87,809.32/x
  3. Step 3: Cross multiply
    159,429.16x = 220,012.50 × 87,809.32
  4. Step 4: Simplify right side
    159,429.16x = 19,319,148,016.50
  5. Step 5: Solve for x
    x = 19,319,148,016.50/159,429.16
  6. Step 6: Final answer
    x = 121,177.00

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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.