Home / 138,560.00-191,113.61-90,071.48

Finding the Fourth Proportional to 138,560.00, 191,113.61 and 90,071.48

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Solution

The fourth proportional to 138,560.00, 191,113.61 and 90,071.48 is: 124,234.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,560.00 : 191,113.61 = 90,071.48 : x
  2. Step 2: Convert to fraction form
    138,560.00/191,113.61 = 90,071.48/x
  3. Step 3: Cross multiply
    138,560.00x = 191,113.61 × 90,071.48
  4. Step 4: Simplify right side
    138,560.00x = 17,213,886,346.16
  5. Step 5: Solve for x
    x = 17,213,886,346.16/138,560.00
  6. Step 6: Final answer
    x = 124,234.16

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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.