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Finding the Fourth Proportional to 110,106.60, 165,159.90 and 74,677.20

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Solution

The fourth proportional to 110,106.60, 165,159.90 and 74,677.20 is: 112,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,106.60 : 165,159.90 = 74,677.20 : x
  2. Step 2: Convert to fraction form
    110,106.60/165,159.90 = 74,677.20/x
  3. Step 3: Cross multiply
    110,106.60x = 165,159.90 × 74,677.20
  4. Step 4: Simplify right side
    110,106.60x = 12,333,678,884.28
  5. Step 5: Solve for x
    x = 12,333,678,884.28/110,106.60
  6. Step 6: Final answer
    x = 112,015.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.