Home / 115,943.67-160,015.16-64,964.70

Finding the Fourth Proportional to 115,943.67, 160,015.16 and 64,964.70

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Solution

The fourth proportional to 115,943.67, 160,015.16 and 64,964.70 is: 89,658.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,943.67 : 160,015.16 = 64,964.70 : x
  2. Step 2: Convert to fraction form
    115,943.67/160,015.16 = 64,964.70/x
  3. Step 3: Cross multiply
    115,943.67x = 160,015.16 × 64,964.70
  4. Step 4: Simplify right side
    115,943.67x = 10,395,337,027.26
  5. Step 5: Solve for x
    x = 10,395,337,027.26/115,943.67
  6. Step 6: Final answer
    x = 89,658.51

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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.