Home / 142,310.90-213,477.16-42,463.28

Finding the Fourth Proportional to 142,310.90, 213,477.16 and 42,463.28

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Solution

The fourth proportional to 142,310.90, 213,477.16 and 42,463.28 is: 63,698.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,310.90 : 213,477.16 = 42,463.28 : x
  2. Step 2: Convert to fraction form
    142,310.90/213,477.16 = 42,463.28/x
  3. Step 3: Cross multiply
    142,310.90x = 213,477.16 × 42,463.28
  4. Step 4: Simplify right side
    142,310.90x = 9,064,940,418.68
  5. Step 5: Solve for x
    x = 9,064,940,418.68/142,310.90
  6. Step 6: Final answer
    x = 63,698.15

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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.