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Finding the Fourth Proportional to 162,175.55, 223,781.40 and 90,558.59

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Solution

The fourth proportional to 162,175.55, 223,781.40 and 90,558.59 is: 124,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,175.55 : 223,781.40 = 90,558.59 : x
  2. Step 2: Convert to fraction form
    162,175.55/223,781.40 = 90,558.59/x
  3. Step 3: Cross multiply
    162,175.55x = 223,781.40 × 90,558.59
  4. Step 4: Simplify right side
    162,175.55x = 20,265,326,933.32
  5. Step 5: Solve for x
    x = 20,265,326,933.32/162,175.55
  6. Step 6: Final answer
    x = 124,959.20

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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.