Home / 98,729.06-136,246.10-55,717.65

Finding the Fourth Proportional to 98,729.06, 136,246.10 and 55,717.65

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Solution

The fourth proportional to 98,729.06, 136,246.10 and 55,717.65 is: 76,890.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,729.06 : 136,246.10 = 55,717.65 : x
  2. Step 2: Convert to fraction form
    98,729.06/136,246.10 = 55,717.65/x
  3. Step 3: Cross multiply
    98,729.06x = 136,246.10 × 55,717.65
  4. Step 4: Simplify right side
    98,729.06x = 7,591,312,235.08
  5. Step 5: Solve for x
    x = 7,591,312,235.08/98,729.06
  6. Step 6: Final answer
    x = 76,890.36

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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.