Home / 131,834.04-181,931.52-71,405.40

Finding the Fourth Proportional to 131,834.04, 181,931.52 and 71,405.40

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Solution

The fourth proportional to 131,834.04, 181,931.52 and 71,405.40 is: 98,539.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,834.04 : 181,931.52 = 71,405.40 : x
  2. Step 2: Convert to fraction form
    131,834.04/181,931.52 = 71,405.40/x
  3. Step 3: Cross multiply
    131,834.04x = 181,931.52 × 71,405.40
  4. Step 4: Simplify right side
    131,834.04x = 12,990,892,958.21
  5. Step 5: Solve for x
    x = 12,990,892,958.21/131,834.04
  6. Step 6: Final answer
    x = 98,539.75

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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.