Home / 134,870.34-186,121.74-74,441.10

Finding the Fourth Proportional to 134,870.34, 186,121.74 and 74,441.10

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Solution

The fourth proportional to 134,870.34, 186,121.74 and 74,441.10 is: 102,729.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,870.34 : 186,121.74 = 74,441.10 : x
  2. Step 2: Convert to fraction form
    134,870.34/186,121.74 = 74,441.10/x
  3. Step 3: Cross multiply
    134,870.34x = 186,121.74 × 74,441.10
  4. Step 4: Simplify right side
    134,870.34x = 13,855,107,059.51
  5. Step 5: Solve for x
    x = 13,855,107,059.51/134,870.34
  6. Step 6: Final answer
    x = 102,729.09

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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.