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Finding the Fourth Proportional to 125,808.82, 173,620.33 and 72,104.13

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Solution

The fourth proportional to 125,808.82, 173,620.33 and 72,104.13 is: 99,506.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,808.82 : 173,620.33 = 72,104.13 : x
  2. Step 2: Convert to fraction form
    125,808.82/173,620.33 = 72,104.13/x
  3. Step 3: Cross multiply
    125,808.82x = 173,620.33 × 72,104.13
  4. Step 4: Simplify right side
    125,808.82x = 12,518,742,844.96
  5. Step 5: Solve for x
    x = 12,518,742,844.96/125,808.82
  6. Step 6: Final answer
    x = 99,506.08

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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.