Home / 142,580.10-196,747.17-85,208.01

Finding the Fourth Proportional to 142,580.10, 196,747.17 and 85,208.01

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Solution

The fourth proportional to 142,580.10, 196,747.17 and 85,208.01 is: 117,579.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,580.10 : 196,747.17 = 85,208.01 : x
  2. Step 2: Convert to fraction form
    142,580.10/196,747.17 = 85,208.01/x
  3. Step 3: Cross multiply
    142,580.10x = 196,747.17 × 85,208.01
  4. Step 4: Simplify right side
    142,580.10x = 16,764,434,828.83
  5. Step 5: Solve for x
    x = 16,764,434,828.83/142,580.10
  6. Step 6: Final answer
    x = 117,579.06

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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.