Home / 124,507.72-171,820.45-67,919.10

Finding the Fourth Proportional to 124,507.72, 171,820.45 and 67,919.10

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Solution

The fourth proportional to 124,507.72, 171,820.45 and 67,919.10 is: 93,728.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,507.72 : 171,820.45 = 67,919.10 : x
  2. Step 2: Convert to fraction form
    124,507.72/171,820.45 = 67,919.10/x
  3. Step 3: Cross multiply
    124,507.72x = 171,820.45 × 67,919.10
  4. Step 4: Simplify right side
    124,507.72x = 11,669,890,325.60
  5. Step 5: Solve for x
    x = 11,669,890,325.60/124,507.72
  6. Step 6: Final answer
    x = 93,728.25

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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.