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Finding the Fourth Proportional to 115,765.65, 159,775.07 and 68,030.73

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Solution

The fourth proportional to 115,765.65, 159,775.07 and 68,030.73 is: 93,893.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,765.65 : 159,775.07 = 68,030.73 : x
  2. Step 2: Convert to fraction form
    115,765.65/159,775.07 = 68,030.73/x
  3. Step 3: Cross multiply
    115,765.65x = 159,775.07 × 68,030.73
  4. Step 4: Simplify right side
    115,765.65x = 10,869,614,307.75
  5. Step 5: Solve for x
    x = 10,869,614,307.75/115,765.65
  6. Step 6: Final answer
    x = 93,893.26

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1.5x scale

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.