Home / 138,914.18-191,701.66-75,252.23

Finding the Fourth Proportional to 138,914.18, 191,701.66 and 75,252.23

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Solution

The fourth proportional to 138,914.18, 191,701.66 and 75,252.23 is: 103,848.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,914.18 : 191,701.66 = 75,252.23 : x
  2. Step 2: Convert to fraction form
    138,914.18/191,701.66 = 75,252.23/x
  3. Step 3: Cross multiply
    138,914.18x = 191,701.66 × 75,252.23
  4. Step 4: Simplify right side
    138,914.18x = 14,425,977,409.70
  5. Step 5: Solve for x
    x = 14,425,977,409.70/138,914.18
  6. Step 6: Final answer
    x = 103,848.13

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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.