Home / 115,108.07-158,812.58-64,797.35

Finding the Fourth Proportional to 115,108.07, 158,812.58 and 64,797.35

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Solution

The fourth proportional to 115,108.07, 158,812.58 and 64,797.35 is: 89,399.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,108.07 : 158,812.58 = 64,797.35 : x
  2. Step 2: Convert to fraction form
    115,108.07/158,812.58 = 64,797.35/x
  3. Step 3: Cross multiply
    115,108.07x = 158,812.58 × 64,797.35
  4. Step 4: Simplify right side
    115,108.07x = 10,290,633,212.61
  5. Step 5: Solve for x
    x = 10,290,633,212.61/115,108.07
  6. Step 6: Final answer
    x = 89,399.76

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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.