Home / 142,317.02-213,467.84-72,194.52

Finding the Fourth Proportional to 142,317.02, 213,467.84 and 72,194.52

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Solution

The fourth proportional to 142,317.02, 213,467.84 and 72,194.52 is: 108,287.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,317.02 : 213,467.84 = 72,194.52 : x
  2. Step 2: Convert to fraction form
    142,317.02/213,467.84 = 72,194.52/x
  3. Step 3: Cross multiply
    142,317.02x = 213,467.84 × 72,194.52
  4. Step 4: Simplify right side
    142,317.02x = 15,411,208,244.24
  5. Step 5: Solve for x
    x = 15,411,208,244.24/142,317.02
  6. Step 6: Final answer
    x = 108,287.88

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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.