Home / 134,647.40-185,811.17-74,223.65

Finding the Fourth Proportional to 134,647.40, 185,811.17 and 74,223.65

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Solution

The fourth proportional to 134,647.40, 185,811.17 and 74,223.65 is: 102,427.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,647.40 : 185,811.17 = 74,223.65 : x
  2. Step 2: Convert to fraction form
    134,647.40/185,811.17 = 74,223.65/x
  3. Step 3: Cross multiply
    134,647.40x = 185,811.17 × 74,223.65
  4. Step 4: Simplify right side
    134,647.40x = 13,791,583,898.26
  5. Step 5: Solve for x
    x = 13,791,583,898.26/134,647.40
  6. Step 6: Final answer
    x = 102,427.40

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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.