Home / 155,430.86-214,502.46-91,767.29

Finding the Fourth Proportional to 155,430.86, 214,502.46 and 91,767.29

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Solution

The fourth proportional to 155,430.86, 214,502.46 and 91,767.29 is: 126,643.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,430.86 : 214,502.46 = 91,767.29 : x
  2. Step 2: Convert to fraction form
    155,430.86/214,502.46 = 91,767.29/x
  3. Step 3: Cross multiply
    155,430.86x = 214,502.46 × 91,767.29
  4. Step 4: Simplify right side
    155,430.86x = 19,684,309,452.53
  5. Step 5: Solve for x
    x = 19,684,309,452.53/155,430.86
  6. Step 6: Final answer
    x = 126,643.51

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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.