Home / 122,040.12-168,410.69-66,848.56

Finding the Fourth Proportional to 122,040.12, 168,410.69 and 66,848.56

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Solution

The fourth proportional to 122,040.12, 168,410.69 and 66,848.56 is: 92,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,040.12 : 168,410.69 = 66,848.56 : x
  2. Step 2: Convert to fraction form
    122,040.12/168,410.69 = 66,848.56/x
  3. Step 3: Cross multiply
    122,040.12x = 168,410.69 × 66,848.56
  4. Step 4: Simplify right side
    122,040.12x = 11,258,011,359.84
  5. Step 5: Solve for x
    x = 11,258,011,359.84/122,040.12
  6. Step 6: Final answer
    x = 92,248.45

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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.