Home / 115,225.90-158,998.86-64,234.78

Finding the Fourth Proportional to 115,225.90, 158,998.86 and 64,234.78

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Solution

The fourth proportional to 115,225.90, 158,998.86 and 64,234.78 is: 88,636.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,225.90 : 158,998.86 = 64,234.78 : x
  2. Step 2: Convert to fraction form
    115,225.90/158,998.86 = 64,234.78/x
  3. Step 3: Cross multiply
    115,225.90x = 158,998.86 × 64,234.78
  4. Step 4: Simplify right side
    115,225.90x = 10,213,256,792.35
  5. Step 5: Solve for x
    x = 10,213,256,792.35/115,225.90
  6. Step 6: Final answer
    x = 88,636.82

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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.