Home / 142,717.13-196,762.93-122,788.09

Finding the Fourth Proportional to 142,717.13, 196,762.93 and 122,788.09

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Solution

The fourth proportional to 142,717.13, 196,762.93 and 122,788.09 is: 169,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,717.13 : 196,762.93 = 122,788.09 : x
  2. Step 2: Convert to fraction form
    142,717.13/196,762.93 = 122,788.09/x
  3. Step 3: Cross multiply
    142,717.13x = 196,762.93 × 122,788.09
  4. Step 4: Simplify right side
    142,717.13x = 24,160,144,357.50
  5. Step 5: Solve for x
    x = 24,160,144,357.50/142,717.13
  6. Step 6: Final answer
    x = 169,286.93

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1.5x scale

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.