Home / 155,276.16-214,064-131,306.56

Finding the Fourth Proportional to 155,276.16, 214,064 and 131,306.56

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Solution

The fourth proportional to 155,276.16, 214,064 and 131,306.56 is: 181,019.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,276.16 : 214,064 = 131,306.56 : x
  2. Step 2: Convert to fraction form
    155,276.16/214,064 = 131,306.56/x
  3. Step 3: Cross multiply
    155,276.16x = 214,064 × 131,306.56
  4. Step 4: Simplify right side
    155,276.16x = 28,108,007,459.84
  5. Step 5: Solve for x
    x = 28,108,007,459.84/155,276.16
  6. Step 6: Final answer
    x = 181,019.47

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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.