Home / 117,711.40-162,422.94-77,441.44

Finding the Fourth Proportional to 117,711.40, 162,422.94 and 77,441.44

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Solution

The fourth proportional to 117,711.40, 162,422.94 and 77,441.44 is: 106,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,711.40 : 162,422.94 = 77,441.44 : x
  2. Step 2: Convert to fraction form
    117,711.40/162,422.94 = 77,441.44/x
  3. Step 3: Cross multiply
    117,711.40x = 162,422.94 × 77,441.44
  4. Step 4: Simplify right side
    117,711.40x = 12,578,266,362.63
  5. Step 5: Solve for x
    x = 12,578,266,362.63/117,711.40
  6. Step 6: Final answer
    x = 106,856.82

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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.