Home / 131,828.34-181,922.06-71,397.60

Finding the Fourth Proportional to 131,828.34, 181,922.06 and 71,397.60

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Solution

The fourth proportional to 131,828.34, 181,922.06 and 71,397.60 is: 98,528.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,828.34 : 181,922.06 = 71,397.60 : x
  2. Step 2: Convert to fraction form
    131,828.34/181,922.06 = 71,397.60/x
  3. Step 3: Cross multiply
    131,828.34x = 181,922.06 × 71,397.60
  4. Step 4: Simplify right side
    131,828.34x = 12,988,798,471.06
  5. Step 5: Solve for x
    x = 12,988,798,471.06/131,828.34
  6. Step 6: Final answer
    x = 98,528.12

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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.