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Finding the Fourth Proportional to 120,092.80, 179,620.80 and 101,430.40

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Solution

The fourth proportional to 120,092.80, 179,620.80 and 101,430.40 is: 151,707.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,092.80 : 179,620.80 = 101,430.40 : x
  2. Step 2: Convert to fraction form
    120,092.80/179,620.80 = 101,430.40/x
  3. Step 3: Cross multiply
    120,092.80x = 179,620.80 × 101,430.40
  4. Step 4: Simplify right side
    120,092.80x = 18,219,009,592.32
  5. Step 5: Solve for x
    x = 18,219,009,592.32/120,092.80
  6. Step 6: Final answer
    x = 151,707.76

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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.