Home / 91,595.67-137,396.19-78,184.10

Finding the Fourth Proportional to 91,595.67, 137,396.19 and 78,184.10

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Solution

The fourth proportional to 91,595.67, 137,396.19 and 78,184.10 is: 117,278.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,595.67 : 137,396.19 = 78,184.10 : x
  2. Step 2: Convert to fraction form
    91,595.67/137,396.19 = 78,184.10/x
  3. Step 3: Cross multiply
    91,595.67x = 137,396.19 × 78,184.10
  4. Step 4: Simplify right side
    91,595.67x = 10,742,196,771.60
  5. Step 5: Solve for x
    x = 10,742,196,771.60/91,595.67
  6. Step 6: Final answer
    x = 117,278.44

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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.