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Finding the Fourth Proportional to 162,391.71, 224,104.59 and 90,783.66

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Solution

The fourth proportional to 162,391.71, 224,104.59 and 90,783.66 is: 125,283.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,391.71 : 224,104.59 = 90,783.66 : x
  2. Step 2: Convert to fraction form
    162,391.71/224,104.59 = 90,783.66/x
  3. Step 3: Cross multiply
    162,391.71x = 224,104.59 × 90,783.66
  4. Step 4: Simplify right side
    162,391.71x = 20,345,034,903.00
  5. Step 5: Solve for x
    x = 20,345,034,903.00/162,391.71
  6. Step 6: Final answer
    x = 125,283.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.