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Finding the Fourth Proportional to 115,853.39, 159,880.11 and 65,552.39

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Solution

The fourth proportional to 115,853.39, 159,880.11 and 65,552.39 is: 90,463.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,853.39 : 159,880.11 = 65,552.39 : x
  2. Step 2: Convert to fraction form
    115,853.39/159,880.11 = 65,552.39/x
  3. Step 3: Cross multiply
    115,853.39x = 159,880.11 × 65,552.39
  4. Step 4: Simplify right side
    115,853.39x = 10,480,523,323.96
  5. Step 5: Solve for x
    x = 10,480,523,323.96/115,853.39
  6. Step 6: Final answer
    x = 90,463.67

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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.