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Finding the Fourth Proportional to 162,165.51, 223,810.83 and 90,550.17

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Solution

The fourth proportional to 162,165.51, 223,810.83 and 90,550.17 is: 124,971.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,165.51 : 223,810.83 = 90,550.17 : x
  2. Step 2: Convert to fraction form
    162,165.51/223,810.83 = 90,550.17/x
  3. Step 3: Cross multiply
    162,165.51x = 223,810.83 × 90,550.17
  4. Step 4: Simplify right side
    162,165.51x = 20,266,108,704.34
  5. Step 5: Solve for x
    x = 20,266,108,704.34/162,165.51
  6. Step 6: Final answer
    x = 124,971.76

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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.