Home / 142,317.81-196,489.15-88,681.64

Finding the Fourth Proportional to 142,317.81, 196,489.15 and 88,681.64

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Solution

The fourth proportional to 142,317.81, 196,489.15 and 88,681.64 is: 122,437.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,317.81 : 196,489.15 = 88,681.64 : x
  2. Step 2: Convert to fraction form
    142,317.81/196,489.15 = 88,681.64/x
  3. Step 3: Cross multiply
    142,317.81x = 196,489.15 × 88,681.64
  4. Step 4: Simplify right side
    142,317.81x = 17,424,978,860.06
  5. Step 5: Solve for x
    x = 17,424,978,860.06/142,317.81
  6. Step 6: Final answer
    x = 122,437.09

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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.