Home / 90,695.02-135,356.70-88,333.06

Finding the Fourth Proportional to 90,695.02, 135,356.70 and 88,333.06

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Solution

The fourth proportional to 90,695.02, 135,356.70 and 88,333.06 is: 131,831.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,695.02 : 135,356.70 = 88,333.06 : x
  2. Step 2: Convert to fraction form
    90,695.02/135,356.70 = 88,333.06/x
  3. Step 3: Cross multiply
    90,695.02x = 135,356.70 × 88,333.06
  4. Step 4: Simplify right side
    90,695.02x = 11,956,471,060.84
  5. Step 5: Solve for x
    x = 11,956,471,060.84/90,695.02
  6. Step 6: Final answer
    x = 131,831.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.