Home / 134,127.13-185,111.53-80,441.68

Finding the Fourth Proportional to 134,127.13, 185,111.53 and 80,441.68

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Solution

The fourth proportional to 134,127.13, 185,111.53 and 80,441.68 is: 111,019.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,127.13 : 185,111.53 = 80,441.68 : x
  2. Step 2: Convert to fraction form
    134,127.13/185,111.53 = 80,441.68/x
  3. Step 3: Cross multiply
    134,127.13x = 185,111.53 × 80,441.68
  4. Step 4: Simplify right side
    134,127.13x = 14,890,682,943.34
  5. Step 5: Solve for x
    x = 14,890,682,943.34/134,127.13
  6. Step 6: Final answer
    x = 111,019.17

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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.