Home / 137,238.04-205,828.20-38,719

Finding the Fourth Proportional to 137,238.04, 205,828.20 and 38,719

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Solution

The fourth proportional to 137,238.04, 205,828.20 and 38,719 is: 58,070.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,238.04 : 205,828.20 = 38,719 : x
  2. Step 2: Convert to fraction form
    137,238.04/205,828.20 = 38,719/x
  3. Step 3: Cross multiply
    137,238.04x = 205,828.20 × 38,719
  4. Step 4: Simplify right side
    137,238.04x = 7,969,462,075.80
  5. Step 5: Solve for x
    x = 7,969,462,075.80/137,238.04
  6. Step 6: Final answer
    x = 58,070.36

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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.