Home / 98,778.25-136,313.98-53,456.23

Finding the Fourth Proportional to 98,778.25, 136,313.98 and 53,456.23

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Solution

The fourth proportional to 98,778.25, 136,313.98 and 53,456.23 is: 73,769.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,778.25 : 136,313.98 = 53,456.23 : x
  2. Step 2: Convert to fraction form
    98,778.25/136,313.98 = 53,456.23/x
  3. Step 3: Cross multiply
    98,778.25x = 136,313.98 × 53,456.23
  4. Step 4: Simplify right side
    98,778.25x = 7,286,830,992.67
  5. Step 5: Solve for x
    x = 7,286,830,992.67/98,778.25
  6. Step 6: Final answer
    x = 73,769.59

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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.