Home / 105,065.75-144,991.22-57,320.12

Finding the Fourth Proportional to 105,065.75, 144,991.22 and 57,320.12

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Solution

The fourth proportional to 105,065.75, 144,991.22 and 57,320.12 is: 79,102.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,065.75 : 144,991.22 = 57,320.12 : x
  2. Step 2: Convert to fraction form
    105,065.75/144,991.22 = 57,320.12/x
  3. Step 3: Cross multiply
    105,065.75x = 144,991.22 × 57,320.12
  4. Step 4: Simplify right side
    105,065.75x = 8,310,913,117.79
  5. Step 5: Solve for x
    x = 8,310,913,117.79/105,065.75
  6. Step 6: Final answer
    x = 79,102.02

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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.