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Finding the Fourth Proportional to 104,300.76, 156,458.89 and 28,412.32

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Solution

The fourth proportional to 104,300.76, 156,458.89 and 28,412.32 is: 42,620.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,300.76 : 156,458.89 = 28,412.32 : x
  2. Step 2: Convert to fraction form
    104,300.76/156,458.89 = 28,412.32/x
  3. Step 3: Cross multiply
    104,300.76x = 156,458.89 × 28,412.32
  4. Step 4: Simplify right side
    104,300.76x = 4,445,359,987.25
  5. Step 5: Solve for x
    x = 4,445,359,987.25/104,300.76
  6. Step 6: Final answer
    x = 42,620.59

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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.