Home / 142,717.64-196,763.63-122,788.59

Finding the Fourth Proportional to 142,717.64, 196,763.63 and 122,788.59

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Solution

The fourth proportional to 142,717.64, 196,763.63 and 122,788.59 is: 169,287.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,717.64 : 196,763.63 = 122,788.59 : x
  2. Step 2: Convert to fraction form
    142,717.64/196,763.63 = 122,788.59/x
  3. Step 3: Cross multiply
    142,717.64x = 196,763.63 × 122,788.59
  4. Step 4: Simplify right side
    142,717.64x = 24,160,328,077.04
  5. Step 5: Solve for x
    x = 24,160,328,077.04/142,717.64
  6. Step 6: Final answer
    x = 169,287.62

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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.