Home / 105,021.66-144,933.39-57,277.71

Finding the Fourth Proportional to 105,021.66, 144,933.39 and 57,277.71

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Solution

The fourth proportional to 105,021.66, 144,933.39 and 57,277.71 is: 79,045.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,021.66 : 144,933.39 = 57,277.71 : x
  2. Step 2: Convert to fraction form
    105,021.66/144,933.39 = 57,277.71/x
  3. Step 3: Cross multiply
    105,021.66x = 144,933.39 × 57,277.71
  4. Step 4: Simplify right side
    105,021.66x = 8,301,452,681.74
  5. Step 5: Solve for x
    x = 8,301,452,681.74/105,021.66
  6. Step 6: Final answer
    x = 79,045.15

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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.