Home / 105,435.23-157,977.88-74,204.87

Finding the Fourth Proportional to 105,435.23, 157,977.88 and 74,204.87

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Solution

The fourth proportional to 105,435.23, 157,977.88 and 74,204.87 is: 111,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,435.23 : 157,977.88 = 74,204.87 : x
  2. Step 2: Convert to fraction form
    105,435.23/157,977.88 = 74,204.87/x
  3. Step 3: Cross multiply
    105,435.23x = 157,977.88 × 74,204.87
  4. Step 4: Simplify right side
    105,435.23x = 11,722,727,072.87
  5. Step 5: Solve for x
    x = 11,722,727,072.87/105,435.23
  6. Step 6: Final answer
    x = 111,184.16

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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.