Home / 99,186.57-136,809.54-63,360.68

Finding the Fourth Proportional to 99,186.57, 136,809.54 and 63,360.68

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Solution

The fourth proportional to 99,186.57, 136,809.54 and 63,360.68 is: 87,394.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,186.57 : 136,809.54 = 63,360.68 : x
  2. Step 2: Convert to fraction form
    99,186.57/136,809.54 = 63,360.68/x
  3. Step 3: Cross multiply
    99,186.57x = 136,809.54 × 63,360.68
  4. Step 4: Simplify right side
    99,186.57x = 8,668,344,800.84
  5. Step 5: Solve for x
    x = 8,668,344,800.84/99,186.57
  6. Step 6: Final answer
    x = 87,394.34

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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.