Home / 138,898.37-191,680.02-75,236.22

Finding the Fourth Proportional to 138,898.37, 191,680.02 and 75,236.22

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Solution

The fourth proportional to 138,898.37, 191,680.02 and 75,236.22 is: 103,826.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,898.37 : 191,680.02 = 75,236.22 : x
  2. Step 2: Convert to fraction form
    138,898.37/191,680.02 = 75,236.22/x
  3. Step 3: Cross multiply
    138,898.37x = 191,680.02 × 75,236.22
  4. Step 4: Simplify right side
    138,898.37x = 14,421,280,154.32
  5. Step 5: Solve for x
    x = 14,421,280,154.32/138,898.37
  6. Step 6: Final answer
    x = 103,826.13

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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.