Home / 124,867.50-172,317.87-80,155.50

Finding the Fourth Proportional to 124,867.50, 172,317.87 and 80,155.50

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Solution

The fourth proportional to 124,867.50, 172,317.87 and 80,155.50 is: 110,615.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,867.50 : 172,317.87 = 80,155.50 : x
  2. Step 2: Convert to fraction form
    124,867.50/172,317.87 = 80,155.50/x
  3. Step 3: Cross multiply
    124,867.50x = 172,317.87 × 80,155.50
  4. Step 4: Simplify right side
    124,867.50x = 13,812,225,028.79
  5. Step 5: Solve for x
    x = 13,812,225,028.79/124,867.50
  6. Step 6: Final answer
    x = 110,615.05

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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.