Home / 109,722.49-151,415.03-61,325.31

Finding the Fourth Proportional to 109,722.49, 151,415.03 and 61,325.31

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Solution

The fourth proportional to 109,722.49, 151,415.03 and 61,325.31 is: 84,627.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,722.49 : 151,415.03 = 61,325.31 : x
  2. Step 2: Convert to fraction form
    109,722.49/151,415.03 = 61,325.31/x
  3. Step 3: Cross multiply
    109,722.49x = 151,415.03 × 61,325.31
  4. Step 4: Simplify right side
    109,722.49x = 9,285,574,374.53
  5. Step 5: Solve for x
    x = 9,285,574,374.53/109,722.49
  6. Step 6: Final answer
    x = 84,627.82

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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.