Home / 112,698.06-155,527.05-61,712.94

Finding the Fourth Proportional to 112,698.06, 155,527.05 and 61,712.94

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Solution

The fourth proportional to 112,698.06, 155,527.05 and 61,712.94 is: 85,165.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,698.06 : 155,527.05 = 61,712.94 : x
  2. Step 2: Convert to fraction form
    112,698.06/155,527.05 = 61,712.94/x
  3. Step 3: Cross multiply
    112,698.06x = 155,527.05 × 61,712.94
  4. Step 4: Simplify right side
    112,698.06x = 9,598,031,505.03
  5. Step 5: Solve for x
    x = 9,598,031,505.03/112,698.06
  6. Step 6: Final answer
    x = 85,165.90

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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.