Home / 109,239.12-150,764.40-61,501.77

Finding the Fourth Proportional to 109,239.12, 150,764.40 and 61,501.77

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Solution

The fourth proportional to 109,239.12, 150,764.40 and 61,501.77 is: 84,880.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,239.12 : 150,764.40 = 61,501.77 : x
  2. Step 2: Convert to fraction form
    109,239.12/150,764.40 = 61,501.77/x
  3. Step 3: Cross multiply
    109,239.12x = 150,764.40 × 61,501.77
  4. Step 4: Simplify right side
    109,239.12x = 9,272,277,452.99
  5. Step 5: Solve for x
    x = 9,272,277,452.99/109,239.12
  6. Step 6: Final answer
    x = 84,880.56

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1.5x scale

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.