Home / 142,038.73-196,112.52-88,347.88

Finding the Fourth Proportional to 142,038.73, 196,112.52 and 88,347.88

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Solution

The fourth proportional to 142,038.73, 196,112.52 and 88,347.88 is: 121,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,038.73 : 196,112.52 = 88,347.88 : x
  2. Step 2: Convert to fraction form
    142,038.73/196,112.52 = 88,347.88/x
  3. Step 3: Cross multiply
    142,038.73x = 196,112.52 × 88,347.88
  4. Step 4: Simplify right side
    142,038.73x = 17,326,125,383.46
  5. Step 5: Solve for x
    x = 17,326,125,383.46/142,038.73
  6. Step 6: Final answer
    x = 121,981.70

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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.