Home / 135,807.02-187,409.88-74,553.20

Finding the Fourth Proportional to 135,807.02, 187,409.88 and 74,553.20

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Solution

The fourth proportional to 135,807.02, 187,409.88 and 74,553.20 is: 102,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,807.02 : 187,409.88 = 74,553.20 : x
  2. Step 2: Convert to fraction form
    135,807.02/187,409.88 = 74,553.20/x
  3. Step 3: Cross multiply
    135,807.02x = 187,409.88 × 74,553.20
  4. Step 4: Simplify right side
    135,807.02x = 13,972,005,328.57
  5. Step 5: Solve for x
    x = 13,972,005,328.57/135,807.02
  6. Step 6: Final answer
    x = 102,881.32

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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.