Home / 168,070.14-231,981.58-99,220.14

Finding the Fourth Proportional to 168,070.14, 231,981.58 and 99,220.14

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Solution

The fourth proportional to 168,070.14, 231,981.58 and 99,220.14 is: 136,950.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,070.14 : 231,981.58 = 99,220.14 : x
  2. Step 2: Convert to fraction form
    168,070.14/231,981.58 = 99,220.14/x
  3. Step 3: Cross multiply
    168,070.14x = 231,981.58 × 99,220.14
  4. Step 4: Simplify right side
    168,070.14x = 23,017,244,845.02
  5. Step 5: Solve for x
    x = 23,017,244,845.02/168,070.14
  6. Step 6: Final answer
    x = 136,950.23

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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.