Home / 131,813.49-181,901.67-71,382.73

Finding the Fourth Proportional to 131,813.49, 181,901.67 and 71,382.73

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Solution

The fourth proportional to 131,813.49, 181,901.67 and 71,382.73 is: 98,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,813.49 : 181,901.67 = 71,382.73 : x
  2. Step 2: Convert to fraction form
    131,813.49/181,901.67 = 71,382.73/x
  3. Step 3: Cross multiply
    131,813.49x = 181,901.67 × 71,382.73
  4. Step 4: Simplify right side
    131,813.49x = 12,984,637,796.16
  5. Step 5: Solve for x
    x = 12,984,637,796.16/131,813.49
  6. Step 6: Final answer
    x = 98,507.65

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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.