Home / 117,774.98-162,514.70-79,617.55

Finding the Fourth Proportional to 117,774.98, 162,514.70 and 79,617.55

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Solution

The fourth proportional to 117,774.98, 162,514.70 and 79,617.55 is: 109,862.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,774.98 : 162,514.70 = 79,617.55 : x
  2. Step 2: Convert to fraction form
    117,774.98/162,514.70 = 79,617.55/x
  3. Step 3: Cross multiply
    117,774.98x = 162,514.70 × 79,617.55
  4. Step 4: Simplify right side
    117,774.98x = 12,939,021,440.41
  5. Step 5: Solve for x
    x = 12,939,021,440.41/117,774.98
  6. Step 6: Final answer
    x = 109,862.23

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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.