Home / 113,547.09-156,687.49-68,198.13

Finding the Fourth Proportional to 113,547.09, 156,687.49 and 68,198.13

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Solution

The fourth proportional to 113,547.09, 156,687.49 and 68,198.13 is: 94,108.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,547.09 : 156,687.49 = 68,198.13 : x
  2. Step 2: Convert to fraction form
    113,547.09/156,687.49 = 68,198.13/x
  3. Step 3: Cross multiply
    113,547.09x = 156,687.49 × 68,198.13
  4. Step 4: Simplify right side
    113,547.09x = 10,685,793,812.39
  5. Step 5: Solve for x
    x = 10,685,793,812.39/113,547.09
  6. Step 6: Final answer
    x = 94,108.92

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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.