Home / 100,102.05-138,127.14-59,807.25

Finding the Fourth Proportional to 100,102.05, 138,127.14 and 59,807.25

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Solution

The fourth proportional to 100,102.05, 138,127.14 and 59,807.25 is: 82,525.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,102.05 : 138,127.14 = 59,807.25 : x
  2. Step 2: Convert to fraction form
    100,102.05/138,127.14 = 59,807.25/x
  3. Step 3: Cross multiply
    100,102.05x = 138,127.14 × 59,807.25
  4. Step 4: Simplify right side
    100,102.05x = 8,261,004,393.77
  5. Step 5: Solve for x
    x = 8,261,004,393.77/100,102.05
  6. Step 6: Final answer
    x = 82,525.83

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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.