Home / 138,058.84-207,088.53-38,219.32

Finding the Fourth Proportional to 138,058.84, 207,088.53 and 38,219.32

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Solution

The fourth proportional to 138,058.84, 207,088.53 and 38,219.32 is: 57,329.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,058.84 : 207,088.53 = 38,219.32 : x
  2. Step 2: Convert to fraction form
    138,058.84/207,088.53 = 38,219.32/x
  3. Step 3: Cross multiply
    138,058.84x = 207,088.53 × 38,219.32
  4. Step 4: Simplify right side
    138,058.84x = 7,914,782,796.40
  5. Step 5: Solve for x
    x = 7,914,782,796.40/138,058.84
  6. Step 6: Final answer
    x = 57,329.05

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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.