Home / 168,384.10-232,400.16-100,405.45

Finding the Fourth Proportional to 168,384.10, 232,400.16 and 100,405.45

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Solution

The fourth proportional to 168,384.10, 232,400.16 and 100,405.45 is: 138,577.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,384.10 : 232,400.16 = 100,405.45 : x
  2. Step 2: Convert to fraction form
    168,384.10/232,400.16 = 100,405.45/x
  3. Step 3: Cross multiply
    168,384.10x = 232,400.16 × 100,405.45
  4. Step 4: Simplify right side
    168,384.10x = 23,334,242,644.87
  5. Step 5: Solve for x
    x = 23,334,242,644.87/168,384.10
  6. Step 6: Final answer
    x = 138,577.47

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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.