Home / 115,634.48-159,624.78-70,327

Finding the Fourth Proportional to 115,634.48, 159,624.78 and 70,327

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Solution

The fourth proportional to 115,634.48, 159,624.78 and 70,327 is: 97,081.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,634.48 : 159,624.78 = 70,327 : x
  2. Step 2: Convert to fraction form
    115,634.48/159,624.78 = 70,327/x
  3. Step 3: Cross multiply
    115,634.48x = 159,624.78 × 70,327
  4. Step 4: Simplify right side
    115,634.48x = 11,225,931,903.06
  5. Step 5: Solve for x
    x = 11,225,931,903.06/115,634.48
  6. Step 6: Final answer
    x = 97,081.18

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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.