Home / 124,191.09-171,396.81-76,443.48

Finding the Fourth Proportional to 124,191.09, 171,396.81 and 76,443.48

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Solution

The fourth proportional to 124,191.09, 171,396.81 and 76,443.48 is: 105,500.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,191.09 : 171,396.81 = 76,443.48 : x
  2. Step 2: Convert to fraction form
    124,191.09/171,396.81 = 76,443.48/x
  3. Step 3: Cross multiply
    124,191.09x = 171,396.81 × 76,443.48
  4. Step 4: Simplify right side
    124,191.09x = 13,102,168,617.30
  5. Step 5: Solve for x
    x = 13,102,168,617.30/124,191.09
  6. Step 6: Final answer
    x = 105,500.07

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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.