Home / 142,388.99-196,497.14-77,862.41

Finding the Fourth Proportional to 142,388.99, 196,497.14 and 77,862.41

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Solution

The fourth proportional to 142,388.99, 196,497.14 and 77,862.41 is: 107,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,388.99 : 196,497.14 = 77,862.41 : x
  2. Step 2: Convert to fraction form
    142,388.99/196,497.14 = 77,862.41/x
  3. Step 3: Cross multiply
    142,388.99x = 196,497.14 × 77,862.41
  4. Step 4: Simplify right side
    142,388.99x = 15,299,739,506.71
  5. Step 5: Solve for x
    x = 15,299,739,506.71/142,388.99
  6. Step 6: Final answer
    x = 107,450.30

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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.