Home / 107,455.20-161,182.80-28,577.40

Finding the Fourth Proportional to 107,455.20, 161,182.80 and 28,577.40

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Solution

The fourth proportional to 107,455.20, 161,182.80 and 28,577.40 is: 42,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,455.20 : 161,182.80 = 28,577.40 : x
  2. Step 2: Convert to fraction form
    107,455.20/161,182.80 = 28,577.40/x
  3. Step 3: Cross multiply
    107,455.20x = 161,182.80 × 28,577.40
  4. Step 4: Simplify right side
    107,455.20x = 4,606,185,348.72
  5. Step 5: Solve for x
    x = 4,606,185,348.72/107,455.20
  6. Step 6: Final answer
    x = 42,866.10

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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.