Home / 131,970.96-182,129.58-75,381.12

Finding the Fourth Proportional to 131,970.96, 182,129.58 and 75,381.12

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Solution

The fourth proportional to 131,970.96, 182,129.58 and 75,381.12 is: 104,031.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,970.96 : 182,129.58 = 75,381.12 : x
  2. Step 2: Convert to fraction form
    131,970.96/182,129.58 = 75,381.12/x
  3. Step 3: Cross multiply
    131,970.96x = 182,129.58 × 75,381.12
  4. Step 4: Simplify right side
    131,970.96x = 13,729,131,725.53
  5. Step 5: Solve for x
    x = 13,729,131,725.53/131,970.96
  6. Step 6: Final answer
    x = 104,031.46

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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.