Home / 142,700.43-197,058.96-106,828.16

Finding the Fourth Proportional to 142,700.43, 197,058.96 and 106,828.16

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Solution

The fourth proportional to 142,700.43, 197,058.96 and 106,828.16 is: 147,521.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,700.43 : 197,058.96 = 106,828.16 : x
  2. Step 2: Convert to fraction form
    142,700.43/197,058.96 = 106,828.16/x
  3. Step 3: Cross multiply
    142,700.43x = 197,058.96 × 106,828.16
  4. Step 4: Simplify right side
    142,700.43x = 21,051,444,588.88
  5. Step 5: Solve for x
    x = 21,051,444,588.88/142,700.43
  6. Step 6: Final answer
    x = 147,521.95

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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.