Home / 205,417.93-307,930.05-86,926.27

Finding the Fourth Proportional to 205,417.93, 307,930.05 and 86,926.27

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Solution

The fourth proportional to 205,417.93, 307,930.05 and 86,926.27 is: 130,306.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,417.93 : 307,930.05 = 86,926.27 : x
  2. Step 2: Convert to fraction form
    205,417.93/307,930.05 = 86,926.27/x
  3. Step 3: Cross multiply
    205,417.93x = 307,930.05 × 86,926.27
  4. Step 4: Simplify right side
    205,417.93x = 26,767,209,127.76
  5. Step 5: Solve for x
    x = 26,767,209,127.76/205,417.93
  6. Step 6: Final answer
    x = 130,306.10

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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.