Home / 125,005.20-187,507.80-51,133.20

Finding the Fourth Proportional to 125,005.20, 187,507.80 and 51,133.20

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Solution

The fourth proportional to 125,005.20, 187,507.80 and 51,133.20 is: 76,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,005.20 : 187,507.80 = 51,133.20 : x
  2. Step 2: Convert to fraction form
    125,005.20/187,507.80 = 51,133.20/x
  3. Step 3: Cross multiply
    125,005.20x = 187,507.80 × 51,133.20
  4. Step 4: Simplify right side
    125,005.20x = 9,587,873,838.96
  5. Step 5: Solve for x
    x = 9,587,873,838.96/125,005.20
  6. Step 6: Final answer
    x = 76,699.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.