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Finding the Fourth Proportional to 161,955.29, 223,498.53 and 90,339.89

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Solution

The fourth proportional to 161,955.29, 223,498.53 and 90,339.89 is: 124,669.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,955.29 : 223,498.53 = 90,339.89 : x
  2. Step 2: Convert to fraction form
    161,955.29/223,498.53 = 90,339.89/x
  3. Step 3: Cross multiply
    161,955.29x = 223,498.53 × 90,339.89
  4. Step 4: Simplify right side
    161,955.29x = 20,190,831,497.87
  5. Step 5: Solve for x
    x = 20,190,831,497.87/161,955.29
  6. Step 6: Final answer
    x = 124,669.17

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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.