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Finding the Fourth Proportional to 188,461.63, 260,066.05 and 103,578.76

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Solution

The fourth proportional to 188,461.63, 260,066.05 and 103,578.76 is: 142,932.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,461.63 : 260,066.05 = 103,578.76 : x
  2. Step 2: Convert to fraction form
    188,461.63/260,066.05 = 103,578.76/x
  3. Step 3: Cross multiply
    188,461.63x = 260,066.05 × 103,578.76
  4. Step 4: Simplify right side
    188,461.63x = 26,937,318,977.10
  5. Step 5: Solve for x
    x = 26,937,318,977.10/188,461.63
  6. Step 6: Final answer
    x = 142,932.64

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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.