Home / 165,926.40-249,019.20-77,190.90

Finding the Fourth Proportional to 165,926.40, 249,019.20 and 77,190.90

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Solution

The fourth proportional to 165,926.40, 249,019.20 and 77,190.90 is: 115,846.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,926.40 : 249,019.20 = 77,190.90 : x
  2. Step 2: Convert to fraction form
    165,926.40/249,019.20 = 77,190.90/x
  3. Step 3: Cross multiply
    165,926.40x = 249,019.20 × 77,190.90
  4. Step 4: Simplify right side
    165,926.40x = 19,222,016,165.28
  5. Step 5: Solve for x
    x = 19,222,016,165.28/165,926.40
  6. Step 6: Final answer
    x = 115,846.64

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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.