Home / 131,285.64-181,180.98-74,705.16

Finding the Fourth Proportional to 131,285.64, 181,180.98 and 74,705.16

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Solution

The fourth proportional to 131,285.64, 181,180.98 and 74,705.16 is: 103,096.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,285.64 : 181,180.98 = 74,705.16 : x
  2. Step 2: Convert to fraction form
    131,285.64/181,180.98 = 74,705.16/x
  3. Step 3: Cross multiply
    131,285.64x = 181,180.98 × 74,705.16
  4. Step 4: Simplify right side
    131,285.64x = 13,535,154,099.86
  5. Step 5: Solve for x
    x = 13,535,154,099.86/131,285.64
  6. Step 6: Final answer
    x = 103,096.99

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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.