Home / 139,681.23-209,520.70-92,507.44

Finding the Fourth Proportional to 139,681.23, 209,520.70 and 92,507.44

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Solution

The fourth proportional to 139,681.23, 209,520.70 and 92,507.44 is: 138,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,681.23 : 209,520.70 = 92,507.44 : x
  2. Step 2: Convert to fraction form
    139,681.23/209,520.70 = 92,507.44/x
  3. Step 3: Cross multiply
    139,681.23x = 209,520.70 × 92,507.44
  4. Step 4: Simplify right side
    139,681.23x = 19,382,223,584.01
  5. Step 5: Solve for x
    x = 19,382,223,584.01/139,681.23
  6. Step 6: Final answer
    x = 138,760.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.