Home / 161,100.23-222,312.13-89,484.82

Finding the Fourth Proportional to 161,100.23, 222,312.13 and 89,484.82

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Solution

The fourth proportional to 161,100.23, 222,312.13 and 89,484.82 is: 123,485.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,100.23 : 222,312.13 = 89,484.82 : x
  2. Step 2: Convert to fraction form
    161,100.23/222,312.13 = 89,484.82/x
  3. Step 3: Cross multiply
    161,100.23x = 222,312.13 × 89,484.82
  4. Step 4: Simplify right side
    161,100.23x = 19,893,560,936.87
  5. Step 5: Solve for x
    x = 19,893,560,936.87/161,100.23
  6. Step 6: Final answer
    x = 123,485.61

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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.