Home / 131,774.09-181,801.01-75,152.66

Finding the Fourth Proportional to 131,774.09, 181,801.01 and 75,152.66

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Solution

The fourth proportional to 131,774.09, 181,801.01 and 75,152.66 is: 103,683.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,774.09 : 181,801.01 = 75,152.66 : x
  2. Step 2: Convert to fraction form
    131,774.09/181,801.01 = 75,152.66/x
  3. Step 3: Cross multiply
    131,774.09x = 181,801.01 × 75,152.66
  4. Step 4: Simplify right side
    131,774.09x = 13,662,829,116.42
  5. Step 5: Solve for x
    x = 13,662,829,116.42/131,774.09
  6. Step 6: Final answer
    x = 103,683.73

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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.