Home / 131,426.55-181,368.62-70,997.21

Finding the Fourth Proportional to 131,426.55, 181,368.62 and 70,997.21

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Solution

The fourth proportional to 131,426.55, 181,368.62 and 70,997.21 is: 97,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,426.55 : 181,368.62 = 70,997.21 : x
  2. Step 2: Convert to fraction form
    131,426.55/181,368.62 = 70,997.21/x
  3. Step 3: Cross multiply
    131,426.55x = 181,368.62 × 70,997.21
  4. Step 4: Simplify right side
    131,426.55x = 12,876,665,686.09
  5. Step 5: Solve for x
    x = 12,876,665,686.09/131,426.55
  6. Step 6: Final answer
    x = 97,976.14

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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.