Home / 131,784.04-181,861.21-71,353.44

Finding the Fourth Proportional to 131,784.04, 181,861.21 and 71,353.44

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Solution

The fourth proportional to 131,784.04, 181,861.21 and 71,353.44 is: 98,467.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,784.04 : 181,861.21 = 71,353.44 : x
  2. Step 2: Convert to fraction form
    131,784.04/181,861.21 = 71,353.44/x
  3. Step 3: Cross multiply
    131,784.04x = 181,861.21 × 71,353.44
  4. Step 4: Simplify right side
    131,784.04x = 12,976,421,669.99
  5. Step 5: Solve for x
    x = 12,976,421,669.99/131,784.04
  6. Step 6: Final answer
    x = 98,467.32

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1.5x scale

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.