Home / 144,045.07-198,782.17-79,514.28

Finding the Fourth Proportional to 144,045.07, 198,782.17 and 79,514.28

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Solution

The fourth proportional to 144,045.07, 198,782.17 and 79,514.28 is: 109,729.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,045.07 : 198,782.17 = 79,514.28 : x
  2. Step 2: Convert to fraction form
    144,045.07/198,782.17 = 79,514.28/x
  3. Step 3: Cross multiply
    144,045.07x = 198,782.17 × 79,514.28
  4. Step 4: Simplify right side
    144,045.07x = 15,806,020,925.60
  5. Step 5: Solve for x
    x = 15,806,020,925.60/144,045.07
  6. Step 6: Final answer
    x = 109,729.69

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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.