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Finding the Fourth Proportional to 125,220.82, 172,804.32 and 67,860.34

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Solution

The fourth proportional to 125,220.82, 172,804.32 and 67,860.34 is: 93,647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,220.82 : 172,804.32 = 67,860.34 : x
  2. Step 2: Convert to fraction form
    125,220.82/172,804.32 = 67,860.34/x
  3. Step 3: Cross multiply
    125,220.82x = 172,804.32 × 67,860.34
  4. Step 4: Simplify right side
    125,220.82x = 11,726,559,908.67
  5. Step 5: Solve for x
    x = 11,726,559,908.67/125,220.82
  6. Step 6: Final answer
    x = 93,647.05

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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.