Home / 109,071.90-150,515.37-61,327.98

Finding the Fourth Proportional to 109,071.90, 150,515.37 and 61,327.98

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Solution

The fourth proportional to 109,071.90, 150,515.37 and 61,327.98 is: 84,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,071.90 : 150,515.37 = 61,327.98 : x
  2. Step 2: Convert to fraction form
    109,071.90/150,515.37 = 61,327.98/x
  3. Step 3: Cross multiply
    109,071.90x = 150,515.37 × 61,327.98
  4. Step 4: Simplify right side
    109,071.90x = 9,230,803,601.05
  5. Step 5: Solve for x
    x = 9,230,803,601.05/109,071.90
  6. Step 6: Final answer
    x = 84,630.45

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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.