Home / 129,307.78-193,968.96-40,559.32

Finding the Fourth Proportional to 129,307.78, 193,968.96 and 40,559.32

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Solution

The fourth proportional to 129,307.78, 193,968.96 and 40,559.32 is: 60,841.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,307.78 : 193,968.96 = 40,559.32 : x
  2. Step 2: Convert to fraction form
    129,307.78/193,968.96 = 40,559.32/x
  3. Step 3: Cross multiply
    129,307.78x = 193,968.96 × 40,559.32
  4. Step 4: Simplify right side
    129,307.78x = 7,867,249,118.71
  5. Step 5: Solve for x
    x = 7,867,249,118.71/129,307.78
  6. Step 6: Final answer
    x = 60,841.27

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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.