Home / 142,038.20-213,001.92-53,243.25

Finding the Fourth Proportional to 142,038.20, 213,001.92 and 53,243.25

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Solution

The fourth proportional to 142,038.20, 213,001.92 and 53,243.25 is: 79,844.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,038.20 : 213,001.92 = 53,243.25 : x
  2. Step 2: Convert to fraction form
    142,038.20/213,001.92 = 53,243.25/x
  3. Step 3: Cross multiply
    142,038.20x = 213,001.92 × 53,243.25
  4. Step 4: Simplify right side
    142,038.20x = 11,340,914,477.04
  5. Step 5: Solve for x
    x = 11,340,914,477.04/142,038.20
  6. Step 6: Final answer
    x = 79,844.12

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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.