Home / 118,313.19-177,498.09-39,428.10

Finding the Fourth Proportional to 118,313.19, 177,498.09 and 39,428.10

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Solution

The fourth proportional to 118,313.19, 177,498.09 and 39,428.10 is: 59,151.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,313.19 : 177,498.09 = 39,428.10 : x
  2. Step 2: Convert to fraction form
    118,313.19/177,498.09 = 39,428.10/x
  3. Step 3: Cross multiply
    118,313.19x = 177,498.09 × 39,428.10
  4. Step 4: Simplify right side
    118,313.19x = 6,998,412,442.33
  5. Step 5: Solve for x
    x = 6,998,412,442.33/118,313.19
  6. Step 6: Final answer
    x = 59,151.58

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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.