Home / 144,472.95-199,403.78-87,902.55

Finding the Fourth Proportional to 144,472.95, 199,403.78 and 87,902.55

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Solution

The fourth proportional to 144,472.95, 199,403.78 and 87,902.55 is: 121,324.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,472.95 : 199,403.78 = 87,902.55 : x
  2. Step 2: Convert to fraction form
    144,472.95/199,403.78 = 87,902.55/x
  3. Step 3: Cross multiply
    144,472.95x = 199,403.78 × 87,902.55
  4. Step 4: Simplify right side
    144,472.95x = 17,528,100,302.13
  5. Step 5: Solve for x
    x = 17,528,100,302.13/144,472.95
  6. Step 6: Final answer
    x = 121,324.44

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1.5x scale

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.