Home / 115,328.76-159,126.66-70,005.66

Finding the Fourth Proportional to 115,328.76, 159,126.66 and 70,005.66

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Solution

The fourth proportional to 115,328.76, 159,126.66 and 70,005.66 is: 96,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,328.76 : 159,126.66 = 70,005.66 : x
  2. Step 2: Convert to fraction form
    115,328.76/159,126.66 = 70,005.66/x
  3. Step 3: Cross multiply
    115,328.76x = 159,126.66 × 70,005.66
  4. Step 4: Simplify right side
    115,328.76x = 11,139,766,856.90
  5. Step 5: Solve for x
    x = 11,139,766,856.90/115,328.76
  6. Step 6: Final answer
    x = 96,591.40

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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.