Home / 158,904.80-219,282.74-87,280.56

Finding the Fourth Proportional to 158,904.80, 219,282.74 and 87,280.56

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Solution

The fourth proportional to 158,904.80, 219,282.74 and 87,280.56 is: 120,443.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,904.80 : 219,282.74 = 87,280.56 : x
  2. Step 2: Convert to fraction form
    158,904.80/219,282.74 = 87,280.56/x
  3. Step 3: Cross multiply
    158,904.80x = 219,282.74 × 87,280.56
  4. Step 4: Simplify right side
    158,904.80x = 19,139,120,345.53
  5. Step 5: Solve for x
    x = 19,139,120,345.53/158,904.80
  6. Step 6: Final answer
    x = 120,443.94

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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.