Home / 138,673.07-191,367.93-75,009.50

Finding the Fourth Proportional to 138,673.07, 191,367.93 and 75,009.50

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Solution

The fourth proportional to 138,673.07, 191,367.93 and 75,009.50 is: 103,512.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,673.07 : 191,367.93 = 75,009.50 : x
  2. Step 2: Convert to fraction form
    138,673.07/191,367.93 = 75,009.50/x
  3. Step 3: Cross multiply
    138,673.07x = 191,367.93 × 75,009.50
  4. Step 4: Simplify right side
    138,673.07x = 14,354,412,745.34
  5. Step 5: Solve for x
    x = 14,354,412,745.34/138,673.07
  6. Step 6: Final answer
    x = 103,512.62

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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.