Home / 159,485.24-220,095.28-87,870.70

Finding the Fourth Proportional to 159,485.24, 220,095.28 and 87,870.70

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Solution

The fourth proportional to 159,485.24, 220,095.28 and 87,870.70 is: 121,264.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,485.24 : 220,095.28 = 87,870.70 : x
  2. Step 2: Convert to fraction form
    159,485.24/220,095.28 = 87,870.70/x
  3. Step 3: Cross multiply
    159,485.24x = 220,095.28 × 87,870.70
  4. Step 4: Simplify right side
    159,485.24x = 19,339,926,320.30
  5. Step 5: Solve for x
    x = 19,339,926,320.30/159,485.24
  6. Step 6: Final answer
    x = 121,264.68

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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.