Home / 142,063.12-196,039.47-88,346.62

Finding the Fourth Proportional to 142,063.12, 196,039.47 and 88,346.62

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Solution

The fourth proportional to 142,063.12, 196,039.47 and 88,346.62 is: 121,913.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,063.12 : 196,039.47 = 88,346.62 : x
  2. Step 2: Convert to fraction form
    142,063.12/196,039.47 = 88,346.62/x
  3. Step 3: Cross multiply
    142,063.12x = 196,039.47 × 88,346.62
  4. Step 4: Simplify right side
    142,063.12x = 17,319,424,561.09
  5. Step 5: Solve for x
    x = 17,319,424,561.09/142,063.12
  6. Step 6: Final answer
    x = 121,913.59

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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.