Home / 138,856.04-191,621.52-75,193.94

Finding the Fourth Proportional to 138,856.04, 191,621.52 and 75,193.94

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Solution

The fourth proportional to 138,856.04, 191,621.52 and 75,193.94 is: 103,767.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,856.04 : 191,621.52 = 75,193.94 : x
  2. Step 2: Convert to fraction form
    138,856.04/191,621.52 = 75,193.94/x
  3. Step 3: Cross multiply
    138,856.04x = 191,621.52 × 75,193.94
  4. Step 4: Simplify right side
    138,856.04x = 14,408,777,077.59
  5. Step 5: Solve for x
    x = 14,408,777,077.59/138,856.04
  6. Step 6: Final answer
    x = 103,767.74

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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.