Home / 115,120.52-158,863.93-64,133.18

Finding the Fourth Proportional to 115,120.52, 158,863.93 and 64,133.18

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Solution

The fourth proportional to 115,120.52, 158,863.93 and 64,133.18 is: 88,502.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,120.52 : 158,863.93 = 64,133.18 : x
  2. Step 2: Convert to fraction form
    115,120.52/158,863.93 = 64,133.18/x
  3. Step 3: Cross multiply
    115,120.52x = 158,863.93 × 64,133.18
  4. Step 4: Simplify right side
    115,120.52x = 10,188,449,018.20
  5. Step 5: Solve for x
    x = 10,188,449,018.20/115,120.52
  6. Step 6: Final answer
    x = 88,502.46

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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.