Home / 116,156.21-160,351.88-77,901.76

Finding the Fourth Proportional to 116,156.21, 160,351.88 and 77,901.76

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Solution

The fourth proportional to 116,156.21, 160,351.88 and 77,901.76 is: 107,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,156.21 : 160,351.88 = 77,901.76 : x
  2. Step 2: Convert to fraction form
    116,156.21/160,351.88 = 77,901.76/x
  3. Step 3: Cross multiply
    116,156.21x = 160,351.88 × 77,901.76
  4. Step 4: Simplify right side
    116,156.21x = 12,491,693,465.18
  5. Step 5: Solve for x
    x = 12,491,693,465.18/116,156.21
  6. Step 6: Final answer
    x = 107,542.20

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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.