Home / 159,543.02-220,166.66-87,921.50

Finding the Fourth Proportional to 159,543.02, 220,166.66 and 87,921.50

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Solution

The fourth proportional to 159,543.02, 220,166.66 and 87,921.50 is: 121,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,543.02 : 220,166.66 = 87,921.50 : x
  2. Step 2: Convert to fraction form
    159,543.02/220,166.66 = 87,921.50/x
  3. Step 3: Cross multiply
    159,543.02x = 220,166.66 × 87,921.50
  4. Step 4: Simplify right side
    159,543.02x = 19,357,382,860.04
  5. Step 5: Solve for x
    x = 19,357,382,860.04/159,543.02
  6. Step 6: Final answer
    x = 121,330.18

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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.