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Finding the Fourth Proportional to 162,001.94, 223,561.80 and 90,381.78

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Solution

The fourth proportional to 162,001.94, 223,561.80 and 90,381.78 is: 124,726.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,001.94 : 223,561.80 = 90,381.78 : x
  2. Step 2: Convert to fraction form
    162,001.94/223,561.80 = 90,381.78/x
  3. Step 3: Cross multiply
    162,001.94x = 223,561.80 × 90,381.78
  4. Step 4: Simplify right side
    162,001.94x = 20,205,913,424.00
  5. Step 5: Solve for x
    x = 20,205,913,424.00/162,001.94
  6. Step 6: Final answer
    x = 124,726.37

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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.