Home / 219,146.04-328,728.42-86,055.14

Finding the Fourth Proportional to 219,146.04, 328,728.42 and 86,055.14

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Solution

The fourth proportional to 219,146.04, 328,728.42 and 86,055.14 is: 129,086.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,146.04 : 328,728.42 = 86,055.14 : x
  2. Step 2: Convert to fraction form
    219,146.04/328,728.42 = 86,055.14/x
  3. Step 3: Cross multiply
    219,146.04x = 328,728.42 × 86,055.14
  4. Step 4: Simplify right side
    219,146.04x = 28,288,771,026.90
  5. Step 5: Solve for x
    x = 28,288,771,026.90/219,146.04
  6. Step 6: Final answer
    x = 129,086.39

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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.