Home / 113,322.60-169,638.30-66,436.20

Finding the Fourth Proportional to 113,322.60, 169,638.30 and 66,436.20

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Solution

The fourth proportional to 113,322.60, 169,638.30 and 66,436.20 is: 99,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,322.60 : 169,638.30 = 66,436.20 : x
  2. Step 2: Convert to fraction form
    113,322.60/169,638.30 = 66,436.20/x
  3. Step 3: Cross multiply
    113,322.60x = 169,638.30 × 66,436.20
  4. Step 4: Simplify right side
    113,322.60x = 11,270,124,026.46
  5. Step 5: Solve for x
    x = 11,270,124,026.46/113,322.60
  6. Step 6: Final answer
    x = 99,451.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.