Home / 109,943.22-151,708.85-61,547.80

Finding the Fourth Proportional to 109,943.22, 151,708.85 and 61,547.80

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Solution

The fourth proportional to 109,943.22, 151,708.85 and 61,547.80 is: 84,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,943.22 : 151,708.85 = 61,547.80 : x
  2. Step 2: Convert to fraction form
    109,943.22/151,708.85 = 61,547.80/x
  3. Step 3: Cross multiply
    109,943.22x = 151,708.85 × 61,547.80
  4. Step 4: Simplify right side
    109,943.22x = 9,337,345,786.28
  5. Step 5: Solve for x
    x = 9,337,345,786.28/109,943.22
  6. Step 6: Final answer
    x = 84,928.80

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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.