Home / 142,062.12-196,038.09-88,345.62

Finding the Fourth Proportional to 142,062.12, 196,038.09 and 88,345.62

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Solution

The fourth proportional to 142,062.12, 196,038.09 and 88,345.62 is: 121,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,062.12 : 196,038.09 = 88,345.62 : x
  2. Step 2: Convert to fraction form
    142,062.12/196,038.09 = 88,345.62/x
  3. Step 3: Cross multiply
    142,062.12x = 196,038.09 × 88,345.62
  4. Step 4: Simplify right side
    142,062.12x = 17,319,106,604.67
  5. Step 5: Solve for x
    x = 17,319,106,604.67/142,062.12
  6. Step 6: Final answer
    x = 121,912.21

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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.