Home / 153,108.35-211,301.34-91,856.84

Finding the Fourth Proportional to 153,108.35, 211,301.34 and 91,856.84

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Solution

The fourth proportional to 153,108.35, 211,301.34 and 91,856.84 is: 126,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,108.35 : 211,301.34 = 91,856.84 : x
  2. Step 2: Convert to fraction form
    153,108.35/211,301.34 = 91,856.84/x
  3. Step 3: Cross multiply
    153,108.35x = 211,301.34 × 91,856.84
  4. Step 4: Simplify right side
    153,108.35x = 19,409,473,380.17
  5. Step 5: Solve for x
    x = 19,409,473,380.17/153,108.35
  6. Step 6: Final answer
    x = 126,769.53

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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.