Home / 109,039.60-164,301.55-89,750.80

Finding the Fourth Proportional to 109,039.60, 164,301.55 and 89,750.80

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Solution

The fourth proportional to 109,039.60, 164,301.55 and 89,750.80 is: 135,237.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,039.60 : 164,301.55 = 89,750.80 : x
  2. Step 2: Convert to fraction form
    109,039.60/164,301.55 = 89,750.80/x
  3. Step 3: Cross multiply
    109,039.60x = 164,301.55 × 89,750.80
  4. Step 4: Simplify right side
    109,039.60x = 14,746,195,553.74
  5. Step 5: Solve for x
    x = 14,746,195,553.74/109,039.60
  6. Step 6: Final answer
    x = 135,237.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.