Home / 115,965.18-160,027.47-65,664.30

Finding the Fourth Proportional to 115,965.18, 160,027.47 and 65,664.30

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Solution

The fourth proportional to 115,965.18, 160,027.47 and 65,664.30 is: 90,614.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,965.18 : 160,027.47 = 65,664.30 : x
  2. Step 2: Convert to fraction form
    115,965.18/160,027.47 = 65,664.30/x
  3. Step 3: Cross multiply
    115,965.18x = 160,027.47 × 65,664.30
  4. Step 4: Simplify right side
    115,965.18x = 10,508,091,798.32
  5. Step 5: Solve for x
    x = 10,508,091,798.32/115,965.18
  6. Step 6: Final answer
    x = 90,614.20

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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.