Home / 110,256.78-152,197.63-78,159.17

Finding the Fourth Proportional to 110,256.78, 152,197.63 and 78,159.17

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Solution

The fourth proportional to 110,256.78, 152,197.63 and 78,159.17 is: 107,890.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,256.78 : 152,197.63 = 78,159.17 : x
  2. Step 2: Convert to fraction form
    110,256.78/152,197.63 = 78,159.17/x
  3. Step 3: Cross multiply
    110,256.78x = 152,197.63 × 78,159.17
  4. Step 4: Simplify right side
    110,256.78x = 11,895,640,621.86
  5. Step 5: Solve for x
    x = 11,895,640,621.86/110,256.78
  6. Step 6: Final answer
    x = 107,890.33

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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.