Home / 131,644.77-181,668.96-71,215.17

Finding the Fourth Proportional to 131,644.77, 181,668.96 and 71,215.17

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Solution

The fourth proportional to 131,644.77, 181,668.96 and 71,215.17 is: 98,276.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,644.77 : 181,668.96 = 71,215.17 : x
  2. Step 2: Convert to fraction form
    131,644.77/181,668.96 = 71,215.17/x
  3. Step 3: Cross multiply
    131,644.77x = 181,668.96 × 71,215.17
  4. Step 4: Simplify right side
    131,644.77x = 12,937,585,870.12
  5. Step 5: Solve for x
    x = 12,937,585,870.12/131,644.77
  6. Step 6: Final answer
    x = 98,276.49

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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.