Home / 134,808.78-186,037.14-74,381.64

Finding the Fourth Proportional to 134,808.78, 186,037.14 and 74,381.64

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Solution

The fourth proportional to 134,808.78, 186,037.14 and 74,381.64 is: 102,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,808.78 : 186,037.14 = 74,381.64 : x
  2. Step 2: Convert to fraction form
    134,808.78/186,037.14 = 74,381.64/x
  3. Step 3: Cross multiply
    134,808.78x = 186,037.14 × 74,381.64
  4. Step 4: Simplify right side
    134,808.78x = 13,837,747,574.11
  5. Step 5: Solve for x
    x = 13,837,747,574.11/134,808.78
  6. Step 6: Final answer
    x = 102,647.23

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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.