Home / 134,340.11-185,415.84-77,017.91

Finding the Fourth Proportional to 134,340.11, 185,415.84 and 77,017.91

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Solution

The fourth proportional to 134,340.11, 185,415.84 and 77,017.91 is: 106,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,340.11 : 185,415.84 = 77,017.91 : x
  2. Step 2: Convert to fraction form
    134,340.11/185,415.84 = 77,017.91/x
  3. Step 3: Cross multiply
    134,340.11x = 185,415.84 × 77,017.91
  4. Step 4: Simplify right side
    134,340.11x = 14,280,340,477.69
  5. Step 5: Solve for x
    x = 14,280,340,477.69/134,340.11
  6. Step 6: Final answer
    x = 106,299.90

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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.