Home / 112,159.71-154,774.95-66,836.70

Finding the Fourth Proportional to 112,159.71, 154,774.95 and 66,836.70

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Solution

The fourth proportional to 112,159.71, 154,774.95 and 66,836.70 is: 92,231.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,159.71 : 154,774.95 = 66,836.70 : x
  2. Step 2: Convert to fraction form
    112,159.71/154,774.95 = 66,836.70/x
  3. Step 3: Cross multiply
    112,159.71x = 154,774.95 × 66,836.70
  4. Step 4: Simplify right side
    112,159.71x = 10,344,646,900.67
  5. Step 5: Solve for x
    x = 10,344,646,900.67/112,159.71
  6. Step 6: Final answer
    x = 92,231.40

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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.