Home / 280,097.60-420,172.52-111,577.10

Finding the Fourth Proportional to 280,097.60, 420,172.52 and 111,577.10

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Solution

The fourth proportional to 280,097.60, 420,172.52 and 111,577.10 is: 167,376.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,097.60 : 420,172.52 = 111,577.10 : x
  2. Step 2: Convert to fraction form
    280,097.60/420,172.52 = 111,577.10/x
  3. Step 3: Cross multiply
    280,097.60x = 420,172.52 × 111,577.10
  4. Step 4: Simplify right side
    280,097.60x = 46,881,628,622.54
  5. Step 5: Solve for x
    x = 46,881,628,622.54/280,097.60
  6. Step 6: Final answer
    x = 167,376.05

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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.