Home / 125,895.21-173,724.79-72,167.91

Finding the Fourth Proportional to 125,895.21, 173,724.79 and 72,167.91

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Solution

The fourth proportional to 125,895.21, 173,724.79 and 72,167.91 is: 99,585.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,895.21 : 173,724.79 = 72,167.91 : x
  2. Step 2: Convert to fraction form
    125,895.21/173,724.79 = 72,167.91/x
  3. Step 3: Cross multiply
    125,895.21x = 173,724.79 × 72,167.91
  4. Step 4: Simplify right side
    125,895.21x = 12,537,355,009.49
  5. Step 5: Solve for x
    x = 12,537,355,009.49/125,895.21
  6. Step 6: Final answer
    x = 99,585.64

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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.