Home / 205,017.80-307,548.56-86,701.10

Finding the Fourth Proportional to 205,017.80, 307,548.56 and 86,701.10

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Solution

The fourth proportional to 205,017.80, 307,548.56 and 86,701.10 is: 130,060.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,017.80 : 307,548.56 = 86,701.10 : x
  2. Step 2: Convert to fraction form
    205,017.80/307,548.56 = 86,701.10/x
  3. Step 3: Cross multiply
    205,017.80x = 307,548.56 × 86,701.10
  4. Step 4: Simplify right side
    205,017.80x = 26,664,796,484.17
  5. Step 5: Solve for x
    x = 26,664,796,484.17/205,017.80
  6. Step 6: Final answer
    x = 130,060.89

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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.