Home / 105,225.92-145,209.41-57,479.46

Finding the Fourth Proportional to 105,225.92, 145,209.41 and 57,479.46

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Solution

The fourth proportional to 105,225.92, 145,209.41 and 57,479.46 is: 79,320.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,225.92 : 145,209.41 = 57,479.46 : x
  2. Step 2: Convert to fraction form
    105,225.92/145,209.41 = 57,479.46/x
  3. Step 3: Cross multiply
    105,225.92x = 145,209.41 × 57,479.46
  4. Step 4: Simplify right side
    105,225.92x = 8,346,557,857.33
  5. Step 5: Solve for x
    x = 8,346,557,857.33/105,225.92
  6. Step 6: Final answer
    x = 79,320.36

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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.