Home / 139,987.53-193,199.19-79,567.25

Finding the Fourth Proportional to 139,987.53, 193,199.19 and 79,567.25

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Solution

The fourth proportional to 139,987.53, 193,199.19 and 79,567.25 is: 109,812.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,987.53 : 193,199.19 = 79,567.25 : x
  2. Step 2: Convert to fraction form
    139,987.53/193,199.19 = 79,567.25/x
  3. Step 3: Cross multiply
    139,987.53x = 193,199.19 × 79,567.25
  4. Step 4: Simplify right side
    139,987.53x = 15,372,328,250.53
  5. Step 5: Solve for x
    x = 15,372,328,250.53/139,987.53
  6. Step 6: Final answer
    x = 109,812.13

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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.