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Finding the Fourth Proportional to 162,302.52, 223,973.32 and 90,683.12

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Solution

The fourth proportional to 162,302.52, 223,973.32 and 90,683.12 is: 125,140.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,302.52 : 223,973.32 = 90,683.12 : x
  2. Step 2: Convert to fraction form
    162,302.52/223,973.32 = 90,683.12/x
  3. Step 3: Cross multiply
    162,302.52x = 223,973.32 × 90,683.12
  4. Step 4: Simplify right side
    162,302.52x = 20,310,599,454.36
  5. Step 5: Solve for x
    x = 20,310,599,454.36/162,302.52
  6. Step 6: Final answer
    x = 125,140.38

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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.