Home / 131,362.75-181,280.81-74,774.13

Finding the Fourth Proportional to 131,362.75, 181,280.81 and 74,774.13

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Solution

The fourth proportional to 131,362.75, 181,280.81 and 74,774.13 is: 103,188.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,362.75 : 181,280.81 = 74,774.13 : x
  2. Step 2: Convert to fraction form
    131,362.75/181,280.81 = 74,774.13/x
  3. Step 3: Cross multiply
    131,362.75x = 181,280.81 × 74,774.13
  4. Step 4: Simplify right side
    131,362.75x = 13,555,114,479.57
  5. Step 5: Solve for x
    x = 13,555,114,479.57/131,362.75
  6. Step 6: Final answer
    x = 103,188.42

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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.