Home / 104,711.94-144,437.68-91,315.35

Finding the Fourth Proportional to 104,711.94, 144,437.68 and 91,315.35

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Solution

The fourth proportional to 104,711.94, 144,437.68 and 91,315.35 is: 125,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,711.94 : 144,437.68 = 91,315.35 : x
  2. Step 2: Convert to fraction form
    104,711.94/144,437.68 = 91,315.35/x
  3. Step 3: Cross multiply
    104,711.94x = 144,437.68 × 91,315.35
  4. Step 4: Simplify right side
    104,711.94x = 13,189,377,416.53
  5. Step 5: Solve for x
    x = 13,189,377,416.53/104,711.94
  6. Step 6: Final answer
    x = 125,958.68

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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.