Home / 142,248.60-196,213.38-91,207.68

Finding the Fourth Proportional to 142,248.60, 196,213.38 and 91,207.68

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Solution

The fourth proportional to 142,248.60, 196,213.38 and 91,207.68 is: 125,809.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,248.60 : 196,213.38 = 91,207.68 : x
  2. Step 2: Convert to fraction form
    142,248.60/196,213.38 = 91,207.68/x
  3. Step 3: Cross multiply
    142,248.60x = 196,213.38 × 91,207.68
  4. Step 4: Simplify right side
    142,248.60x = 17,896,167,174.76
  5. Step 5: Solve for x
    x = 17,896,167,174.76/142,248.60
  6. Step 6: Final answer
    x = 125,809.09

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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.