Home / 112,262.30-154,918.11-66,916.90

Finding the Fourth Proportional to 112,262.30, 154,918.11 and 66,916.90

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Solution

The fourth proportional to 112,262.30, 154,918.11 and 66,916.90 is: 92,343.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,262.30 : 154,918.11 = 66,916.90 : x
  2. Step 2: Convert to fraction form
    112,262.30/154,918.11 = 66,916.90/x
  3. Step 3: Cross multiply
    112,262.30x = 154,918.11 × 66,916.90
  4. Step 4: Simplify right side
    112,262.30x = 10,366,639,675.06
  5. Step 5: Solve for x
    x = 10,366,639,675.06/112,262.30
  6. Step 6: Final answer
    x = 92,343.02

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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.