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Finding the Fourth Proportional to 162,008.17, 223,582.02 and 90,389.74

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Solution

The fourth proportional to 162,008.17, 223,582.02 and 90,389.74 is: 124,743.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,008.17 : 223,582.02 = 90,389.74 : x
  2. Step 2: Convert to fraction form
    162,008.17/223,582.02 = 90,389.74/x
  3. Step 3: Cross multiply
    162,008.17x = 223,582.02 × 90,389.74
  4. Step 4: Simplify right side
    162,008.17x = 20,209,520,204.53
  5. Step 5: Solve for x
    x = 20,209,520,204.53/162,008.17
  6. Step 6: Final answer
    x = 124,743.84

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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.