Home / 99,541.30-137,361.81-61,814.74

Finding the Fourth Proportional to 99,541.30, 137,361.81 and 61,814.74

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Solution

The fourth proportional to 99,541.30, 137,361.81 and 61,814.74 is: 85,301.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,541.30 : 137,361.81 = 61,814.74 : x
  2. Step 2: Convert to fraction form
    99,541.30/137,361.81 = 61,814.74/x
  3. Step 3: Cross multiply
    99,541.30x = 137,361.81 × 61,814.74
  4. Step 4: Simplify right side
    99,541.30x = 8,490,984,571.08
  5. Step 5: Solve for x
    x = 8,490,984,571.08/99,541.30
  6. Step 6: Final answer
    x = 85,301.12

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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.