Home / 134,822.75-186,048.15-74,381.56

Finding the Fourth Proportional to 134,822.75, 186,048.15 and 74,381.56

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Solution

The fourth proportional to 134,822.75, 186,048.15 and 74,381.56 is: 102,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,822.75 : 186,048.15 = 74,381.56 : x
  2. Step 2: Convert to fraction form
    134,822.75/186,048.15 = 74,381.56/x
  3. Step 3: Cross multiply
    134,822.75x = 186,048.15 × 74,381.56
  4. Step 4: Simplify right side
    134,822.75x = 13,838,551,632.11
  5. Step 5: Solve for x
    x = 13,838,551,632.11/134,822.75
  6. Step 6: Final answer
    x = 102,642.56

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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.