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Finding the Fourth Proportional to 162,818.80, 224,686.60 and 90,214.64

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Solution

The fourth proportional to 162,818.80, 224,686.60 and 90,214.64 is: 124,494.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,818.80 : 224,686.60 = 90,214.64 : x
  2. Step 2: Convert to fraction form
    162,818.80/224,686.60 = 90,214.64/x
  3. Step 3: Cross multiply
    162,818.80x = 224,686.60 × 90,214.64
  4. Step 4: Simplify right side
    162,818.80x = 20,270,020,731.82
  5. Step 5: Solve for x
    x = 20,270,020,731.82/162,818.80
  6. Step 6: Final answer
    x = 124,494.35

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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.