Home / 119,120.02-178,642.13-39,139.54

Finding the Fourth Proportional to 119,120.02, 178,642.13 and 39,139.54

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Solution

The fourth proportional to 119,120.02, 178,642.13 and 39,139.54 is: 58,696.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,120.02 : 178,642.13 = 39,139.54 : x
  2. Step 2: Convert to fraction form
    119,120.02/178,642.13 = 39,139.54/x
  3. Step 3: Cross multiply
    119,120.02x = 178,642.13 × 39,139.54
  4. Step 4: Simplify right side
    119,120.02x = 6,991,970,150.52
  5. Step 5: Solve for x
    x = 6,991,970,150.52/119,120.02
  6. Step 6: Final answer
    x = 58,696.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.