Home / 147,415.86-203,376.15-90,728.82

Finding the Fourth Proportional to 147,415.86, 203,376.15 and 90,728.82

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Solution

The fourth proportional to 147,415.86, 203,376.15 and 90,728.82 is: 125,170.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,415.86 : 203,376.15 = 90,728.82 : x
  2. Step 2: Convert to fraction form
    147,415.86/203,376.15 = 90,728.82/x
  3. Step 3: Cross multiply
    147,415.86x = 203,376.15 × 90,728.82
  4. Step 4: Simplify right side
    147,415.86x = 18,452,078,105.64
  5. Step 5: Solve for x
    x = 18,452,078,105.64/147,415.86
  6. Step 6: Final answer
    x = 125,170.24

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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.