Home / 205,158.03-307,881.59-72,048.66

Finding the Fourth Proportional to 205,158.03, 307,881.59 and 72,048.66

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Solution

The fourth proportional to 205,158.03, 307,881.59 and 72,048.66 is: 108,123.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,158.03 : 307,881.59 = 72,048.66 : x
  2. Step 2: Convert to fraction form
    205,158.03/307,881.59 = 72,048.66/x
  3. Step 3: Cross multiply
    205,158.03x = 307,881.59 × 72,048.66
  4. Step 4: Simplify right side
    205,158.03x = 22,182,455,637.93
  5. Step 5: Solve for x
    x = 22,182,455,637.93/205,158.03
  6. Step 6: Final answer
    x = 108,123.75

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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.