Home / 135,724.10-203,665.53-56,831.72

Finding the Fourth Proportional to 135,724.10, 203,665.53 and 56,831.72

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Solution

The fourth proportional to 135,724.10, 203,665.53 and 56,831.72 is: 85,280.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,724.10 : 203,665.53 = 56,831.72 : x
  2. Step 2: Convert to fraction form
    135,724.10/203,665.53 = 56,831.72/x
  3. Step 3: Cross multiply
    135,724.10x = 203,665.53 × 56,831.72
  4. Step 4: Simplify right side
    135,724.10x = 11,574,662,374.61
  5. Step 5: Solve for x
    x = 11,574,662,374.61/135,724.10
  6. Step 6: Final answer
    x = 85,280.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.