Home / 110,140.30-165,210.58-30,178.95

Finding the Fourth Proportional to 110,140.30, 165,210.58 and 30,178.95

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Solution

The fourth proportional to 110,140.30, 165,210.58 and 30,178.95 is: 45,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,140.30 : 165,210.58 = 30,178.95 : x
  2. Step 2: Convert to fraction form
    110,140.30/165,210.58 = 30,178.95/x
  3. Step 3: Cross multiply
    110,140.30x = 165,210.58 × 30,178.95
  4. Step 4: Simplify right side
    110,140.30x = 4,985,881,251.48
  5. Step 5: Solve for x
    x = 4,985,881,251.48/110,140.30
  6. Step 6: Final answer
    x = 45,268.45

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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.