Home / 144,478.95-199,412.07-87,908.55

Finding the Fourth Proportional to 144,478.95, 199,412.07 and 87,908.55

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Solution

The fourth proportional to 144,478.95, 199,412.07 and 87,908.55 is: 121,332.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,478.95 : 199,412.07 = 87,908.55 : x
  2. Step 2: Convert to fraction form
    144,478.95/199,412.07 = 87,908.55/x
  3. Step 3: Cross multiply
    144,478.95x = 199,412.07 × 87,908.55
  4. Step 4: Simplify right side
    144,478.95x = 17,530,025,926.20
  5. Step 5: Solve for x
    x = 17,530,025,926.20/144,478.95
  6. Step 6: Final answer
    x = 121,332.73

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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.