Home / 105,315.39-145,337.49-57,573.18

Finding the Fourth Proportional to 105,315.39, 145,337.49 and 57,573.18

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Solution

The fourth proportional to 105,315.39, 145,337.49 and 57,573.18 is: 79,452.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,315.39 : 145,337.49 = 57,573.18 : x
  2. Step 2: Convert to fraction form
    105,315.39/145,337.49 = 57,573.18/x
  3. Step 3: Cross multiply
    105,315.39x = 145,337.49 × 57,573.18
  4. Step 4: Simplify right side
    105,315.39x = 8,367,541,472.52
  5. Step 5: Solve for x
    x = 8,367,541,472.52/105,315.39
  6. Step 6: Final answer
    x = 79,452.22

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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.