Home / 131,823.04-181,916.34-71,394.40

Finding the Fourth Proportional to 131,823.04, 181,916.34 and 71,394.40

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Solution

The fourth proportional to 131,823.04, 181,916.34 and 71,394.40 is: 98,524.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,823.04 : 181,916.34 = 71,394.40 : x
  2. Step 2: Convert to fraction form
    131,823.04/181,916.34 = 71,394.40/x
  3. Step 3: Cross multiply
    131,823.04x = 181,916.34 × 71,394.40
  4. Step 4: Simplify right side
    131,823.04x = 12,987,807,944.50
  5. Step 5: Solve for x
    x = 12,987,807,944.50/131,823.04
  6. Step 6: Final answer
    x = 98,524.57

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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.