Home / 142,700.92-197,059.64-106,828.66

Finding the Fourth Proportional to 142,700.92, 197,059.64 and 106,828.66

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Solution

The fourth proportional to 142,700.92, 197,059.64 and 106,828.66 is: 147,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,700.92 : 197,059.64 = 106,828.66 : x
  2. Step 2: Convert to fraction form
    142,700.92/197,059.64 = 106,828.66/x
  3. Step 3: Cross multiply
    142,700.92x = 197,059.64 × 106,828.66
  4. Step 4: Simplify right side
    142,700.92x = 21,051,617,281.28
  5. Step 5: Solve for x
    x = 21,051,617,281.28/142,700.92
  6. Step 6: Final answer
    x = 147,522.65

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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.