Home / 112,315.97-154,995.95-64,578.65

Finding the Fourth Proportional to 112,315.97, 154,995.95 and 64,578.65

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Solution

The fourth proportional to 112,315.97, 154,995.95 and 64,578.65 is: 89,118.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,315.97 : 154,995.95 = 64,578.65 : x
  2. Step 2: Convert to fraction form
    112,315.97/154,995.95 = 64,578.65/x
  3. Step 3: Cross multiply
    112,315.97x = 154,995.95 × 64,578.65
  4. Step 4: Simplify right side
    112,315.97x = 10,009,428,883.57
  5. Step 5: Solve for x
    x = 10,009,428,883.57/112,315.97
  6. Step 6: Final answer
    x = 89,118.48

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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.