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Finding the Fourth Proportional to 91,596.03, 137,191.04 and 70,379.90

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Solution

The fourth proportional to 91,596.03, 137,191.04 and 70,379.90 is: 105,413.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,596.03 : 137,191.04 = 70,379.90 : x
  2. Step 2: Convert to fraction form
    91,596.03/137,191.04 = 70,379.90/x
  3. Step 3: Cross multiply
    91,596.03x = 137,191.04 × 70,379.90
  4. Step 4: Simplify right side
    91,596.03x = 9,655,492,386.28
  5. Step 5: Solve for x
    x = 9,655,492,386.28/91,596.03
  6. Step 6: Final answer
    x = 105,413.87

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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.