Home / 155,122.86-214,036.32-90,562.77

Finding the Fourth Proportional to 155,122.86, 214,036.32 and 90,562.77

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Solution

The fourth proportional to 155,122.86, 214,036.32 and 90,562.77 is: 124,957.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,122.86 : 214,036.32 = 90,562.77 : x
  2. Step 2: Convert to fraction form
    155,122.86/214,036.32 = 90,562.77/x
  3. Step 3: Cross multiply
    155,122.86x = 214,036.32 × 90,562.77
  4. Step 4: Simplify right side
    155,122.86x = 19,383,722,019.81
  5. Step 5: Solve for x
    x = 19,383,722,019.81/155,122.86
  6. Step 6: Final answer
    x = 124,957.22

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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.