Home / 109,239.12-150,764.34-61,501.80

Finding the Fourth Proportional to 109,239.12, 150,764.34 and 61,501.80

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Solution

The fourth proportional to 109,239.12, 150,764.34 and 61,501.80 is: 84,880.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,239.12 : 150,764.34 = 61,501.80 : x
  2. Step 2: Convert to fraction form
    109,239.12/150,764.34 = 61,501.80/x
  3. Step 3: Cross multiply
    109,239.12x = 150,764.34 × 61,501.80
  4. Step 4: Simplify right side
    109,239.12x = 9,272,278,285.81
  5. Step 5: Solve for x
    x = 9,272,278,285.81/109,239.12
  6. Step 6: Final answer
    x = 84,880.57

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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.