Home / 100,894.02-139,234.69-55,572.17

Finding the Fourth Proportional to 100,894.02, 139,234.69 and 55,572.17

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Solution

The fourth proportional to 100,894.02, 139,234.69 and 55,572.17 is: 76,690.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,894.02 : 139,234.69 = 55,572.17 : x
  2. Step 2: Convert to fraction form
    100,894.02/139,234.69 = 55,572.17/x
  3. Step 3: Cross multiply
    100,894.02x = 139,234.69 × 55,572.17
  4. Step 4: Simplify right side
    100,894.02x = 7,737,573,862.58
  5. Step 5: Solve for x
    x = 7,737,573,862.58/100,894.02
  6. Step 6: Final answer
    x = 76,690.11

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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.