Home / 159,433.04-220,017.48-87,811.28

Finding the Fourth Proportional to 159,433.04, 220,017.48 and 87,811.28

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Solution

The fourth proportional to 159,433.04, 220,017.48 and 87,811.28 is: 121,179.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,433.04 : 220,017.48 = 87,811.28 : x
  2. Step 2: Convert to fraction form
    159,433.04/220,017.48 = 87,811.28/x
  3. Step 3: Cross multiply
    159,433.04x = 220,017.48 × 87,811.28
  4. Step 4: Simplify right side
    159,433.04x = 19,320,016,541.17
  5. Step 5: Solve for x
    x = 19,320,016,541.17/159,433.04
  6. Step 6: Final answer
    x = 121,179.50

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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.