Home / 113,772.15-170,656.61-51,442.65

Finding the Fourth Proportional to 113,772.15, 170,656.61 and 51,442.65

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Solution

The fourth proportional to 113,772.15, 170,656.61 and 51,442.65 is: 77,163.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,772.15 : 170,656.61 = 51,442.65 : x
  2. Step 2: Convert to fraction form
    113,772.15/170,656.61 = 51,442.65/x
  3. Step 3: Cross multiply
    113,772.15x = 170,656.61 × 51,442.65
  4. Step 4: Simplify right side
    113,772.15x = 8,779,028,001.20
  5. Step 5: Solve for x
    x = 8,779,028,001.20/113,772.15
  6. Step 6: Final answer
    x = 77,163.24

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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.