Home / 112,210.58-154,870.64-66,891.49

Finding the Fourth Proportional to 112,210.58, 154,870.64 and 66,891.49

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Solution

The fourth proportional to 112,210.58, 154,870.64 and 66,891.49 is: 92,322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,210.58 : 154,870.64 = 66,891.49 : x
  2. Step 2: Convert to fraction form
    112,210.58/154,870.64 = 66,891.49/x
  3. Step 3: Cross multiply
    112,210.58x = 154,870.64 × 66,891.49
  4. Step 4: Simplify right side
    112,210.58x = 10,359,527,396.06
  5. Step 5: Solve for x
    x = 10,359,527,396.06/112,210.58
  6. Step 6: Final answer
    x = 92,322.20

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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.