Home / 109,566.57-151,209-61,802.49

Finding the Fourth Proportional to 109,566.57, 151,209 and 61,802.49

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Solution

The fourth proportional to 109,566.57, 151,209 and 61,802.49 is: 85,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,566.57 : 151,209 = 61,802.49 : x
  2. Step 2: Convert to fraction form
    109,566.57/151,209 = 61,802.49/x
  3. Step 3: Cross multiply
    109,566.57x = 151,209 × 61,802.49
  4. Step 4: Simplify right side
    109,566.57x = 9,345,092,710.41
  5. Step 5: Solve for x
    x = 9,345,092,710.41/109,566.57
  6. Step 6: Final answer
    x = 85,291.46

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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.