Home / 137,834.29-190,215.58-77,406.23

Finding the Fourth Proportional to 137,834.29, 190,215.58 and 77,406.23

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Solution

The fourth proportional to 137,834.29, 190,215.58 and 77,406.23 is: 106,822.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,834.29 : 190,215.58 = 77,406.23 : x
  2. Step 2: Convert to fraction form
    137,834.29/190,215.58 = 77,406.23/x
  3. Step 3: Cross multiply
    137,834.29x = 190,215.58 × 77,406.23
  4. Step 4: Simplify right side
    137,834.29x = 14,723,870,952.44
  5. Step 5: Solve for x
    x = 14,723,870,952.44/137,834.29
  6. Step 6: Final answer
    x = 106,822.99

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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.