Home / 115,520.62-159,429.18-70,188.16

Finding the Fourth Proportional to 115,520.62, 159,429.18 and 70,188.16

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Solution

The fourth proportional to 115,520.62, 159,429.18 and 70,188.16 is: 96,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,520.62 : 159,429.18 = 70,188.16 : x
  2. Step 2: Convert to fraction form
    115,520.62/159,429.18 = 70,188.16/x
  3. Step 3: Cross multiply
    115,520.62x = 159,429.18 × 70,188.16
  4. Step 4: Simplify right side
    115,520.62x = 11,190,040,794.51
  5. Step 5: Solve for x
    x = 11,190,040,794.51/115,520.62
  6. Step 6: Final answer
    x = 96,866.18

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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.