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Finding the Fourth Proportional to 159,492.60, 220,085.10 and 91,495.80

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Solution

The fourth proportional to 159,492.60, 220,085.10 and 91,495.80 is: 126,255.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,492.60 : 220,085.10 = 91,495.80 : x
  2. Step 2: Convert to fraction form
    159,492.60/220,085.10 = 91,495.80/x
  3. Step 3: Cross multiply
    159,492.60x = 220,085.10 × 91,495.80
  4. Step 4: Simplify right side
    159,492.60x = 20,136,862,292.58
  5. Step 5: Solve for x
    x = 20,136,862,292.58/159,492.60
  6. Step 6: Final answer
    x = 126,255.78

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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.