Home / 125,962.49-173,793.80-87,679.06

Finding the Fourth Proportional to 125,962.49, 173,793.80 and 87,679.06

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Solution

The fourth proportional to 125,962.49, 173,793.80 and 87,679.06 is: 120,973.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,962.49 : 173,793.80 = 87,679.06 : x
  2. Step 2: Convert to fraction form
    125,962.49/173,793.80 = 87,679.06/x
  3. Step 3: Cross multiply
    125,962.49x = 173,793.80 × 87,679.06
  4. Step 4: Simplify right side
    125,962.49x = 15,238,076,802.54
  5. Step 5: Solve for x
    x = 15,238,076,802.54/125,962.49
  6. Step 6: Final answer
    x = 120,973.13

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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.