Home / 165,681.30-248,594.85-76,889.10

Finding the Fourth Proportional to 165,681.30, 248,594.85 and 76,889.10

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Solution

The fourth proportional to 165,681.30, 248,594.85 and 76,889.10 is: 115,367.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,681.30 : 248,594.85 = 76,889.10 : x
  2. Step 2: Convert to fraction form
    165,681.30/248,594.85 = 76,889.10/x
  3. Step 3: Cross multiply
    165,681.30x = 248,594.85 × 76,889.10
  4. Step 4: Simplify right side
    165,681.30x = 19,114,234,281.14
  5. Step 5: Solve for x
    x = 19,114,234,281.14/165,681.30
  6. Step 6: Final answer
    x = 115,367.48

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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.