Home / 142,054.79-196,036.76-77,524.54

Finding the Fourth Proportional to 142,054.79, 196,036.76 and 77,524.54

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Solution

The fourth proportional to 142,054.79, 196,036.76 and 77,524.54 is: 106,984.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,054.79 : 196,036.76 = 77,524.54 : x
  2. Step 2: Convert to fraction form
    142,054.79/196,036.76 = 77,524.54/x
  3. Step 3: Cross multiply
    142,054.79x = 196,036.76 × 77,524.54
  4. Step 4: Simplify right side
    142,054.79x = 15,197,658,274.28
  5. Step 5: Solve for x
    x = 15,197,658,274.28/142,054.79
  6. Step 6: Final answer
    x = 106,984.48

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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.