Home / 142,167.21-213,066.73-57,829.47

Finding the Fourth Proportional to 142,167.21, 213,066.73 and 57,829.47

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Solution

The fourth proportional to 142,167.21, 213,066.73 and 57,829.47 is: 86,669.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,167.21 : 213,066.73 = 57,829.47 : x
  2. Step 2: Convert to fraction form
    142,167.21/213,066.73 = 57,829.47/x
  3. Step 3: Cross multiply
    142,167.21x = 213,066.73 × 57,829.47
  4. Step 4: Simplify right side
    142,167.21x = 12,321,536,070.53
  5. Step 5: Solve for x
    x = 12,321,536,070.53/142,167.21
  6. Step 6: Final answer
    x = 86,669.32

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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.