Home / 142,040.90-213,061.35-53,297.30

Finding the Fourth Proportional to 142,040.90, 213,061.35 and 53,297.30

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Solution

The fourth proportional to 142,040.90, 213,061.35 and 53,297.30 is: 79,945.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,040.90 : 213,061.35 = 53,297.30 : x
  2. Step 2: Convert to fraction form
    142,040.90/213,061.35 = 53,297.30/x
  3. Step 3: Cross multiply
    142,040.90x = 213,061.35 × 53,297.30
  4. Step 4: Simplify right side
    142,040.90x = 11,355,594,689.36
  5. Step 5: Solve for x
    x = 11,355,594,689.36/142,040.90
  6. Step 6: Final answer
    x = 79,945.95

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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.