Home / 131,823.54-181,929.51-75,243.42

Finding the Fourth Proportional to 131,823.54, 181,929.51 and 75,243.42

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Solution

The fourth proportional to 131,823.54, 181,929.51 and 75,243.42 is: 103,843.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,823.54 : 181,929.51 = 75,243.42 : x
  2. Step 2: Convert to fraction form
    131,823.54/181,929.51 = 75,243.42/x
  3. Step 3: Cross multiply
    131,823.54x = 181,929.51 × 75,243.42
  4. Step 4: Simplify right side
    131,823.54x = 13,688,998,531.32
  5. Step 5: Solve for x
    x = 13,688,998,531.32/131,823.54
  6. Step 6: Final answer
    x = 103,843.35

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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.