Home / 155,356.80-214,319.04-91,652.16

Finding the Fourth Proportional to 155,356.80, 214,319.04 and 91,652.16

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Solution

The fourth proportional to 155,356.80, 214,319.04 and 91,652.16 is: 126,436.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,356.80 : 214,319.04 = 91,652.16 : x
  2. Step 2: Convert to fraction form
    155,356.80/214,319.04 = 91,652.16/x
  3. Step 3: Cross multiply
    155,356.80x = 214,319.04 × 91,652.16
  4. Step 4: Simplify right side
    155,356.80x = 19,642,802,945.13
  5. Step 5: Solve for x
    x = 19,642,802,945.13/155,356.80
  6. Step 6: Final answer
    x = 126,436.71

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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.