Home / 105,448.61-145,519.08-57,701.95

Finding the Fourth Proportional to 105,448.61, 145,519.08 and 57,701.95

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Solution

The fourth proportional to 105,448.61, 145,519.08 and 57,701.95 is: 79,628.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,448.61 : 145,519.08 = 57,701.95 : x
  2. Step 2: Convert to fraction form
    105,448.61/145,519.08 = 57,701.95/x
  3. Step 3: Cross multiply
    105,448.61x = 145,519.08 × 57,701.95
  4. Step 4: Simplify right side
    105,448.61x = 8,396,734,916.57
  5. Step 5: Solve for x
    x = 8,396,734,916.57/105,448.61
  6. Step 6: Final answer
    x = 79,628.69

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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.