Home / 112,290.87-154,954.80-61,293.48

Finding the Fourth Proportional to 112,290.87, 154,954.80 and 61,293.48

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Solution

The fourth proportional to 112,290.87, 154,954.80 and 61,293.48 is: 84,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,290.87 : 154,954.80 = 61,293.48 : x
  2. Step 2: Convert to fraction form
    112,290.87/154,954.80 = 61,293.48/x
  3. Step 3: Cross multiply
    112,290.87x = 154,954.80 × 61,293.48
  4. Step 4: Simplify right side
    112,290.87x = 9,497,718,934.70
  5. Step 5: Solve for x
    x = 9,497,718,934.70/112,290.87
  6. Step 6: Final answer
    x = 84,581.40

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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.