Home / 138,265.92-190,825.16-77,848.34

Finding the Fourth Proportional to 138,265.92, 190,825.16 and 77,848.34

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Solution

The fourth proportional to 138,265.92, 190,825.16 and 77,848.34 is: 107,440.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,265.92 : 190,825.16 = 77,848.34 : x
  2. Step 2: Convert to fraction form
    138,265.92/190,825.16 = 77,848.34/x
  3. Step 3: Cross multiply
    138,265.92x = 190,825.16 × 77,848.34
  4. Step 4: Simplify right side
    138,265.92x = 14,855,420,592.87
  5. Step 5: Solve for x
    x = 14,855,420,592.87/138,265.92
  6. Step 6: Final answer
    x = 107,440.94

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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.