Home / 222,513.16-307,068.84-120,539.68

Finding the Fourth Proportional to 222,513.16, 307,068.84 and 120,539.68

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Solution

The fourth proportional to 222,513.16, 307,068.84 and 120,539.68 is: 166,345.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,513.16 : 307,068.84 = 120,539.68 : x
  2. Step 2: Convert to fraction form
    222,513.16/307,068.84 = 120,539.68/x
  3. Step 3: Cross multiply
    222,513.16x = 307,068.84 × 120,539.68
  4. Step 4: Simplify right side
    222,513.16x = 37,013,979,711.57
  5. Step 5: Solve for x
    x = 37,013,979,711.57/222,513.16
  6. Step 6: Final answer
    x = 166,345.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.