Home / 142,524.16-196,681.60-77,992.71

Finding the Fourth Proportional to 142,524.16, 196,681.60 and 77,992.71

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Solution

The fourth proportional to 142,524.16, 196,681.60 and 77,992.71 is: 107,628.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,524.16 : 196,681.60 = 77,992.71 : x
  2. Step 2: Convert to fraction form
    142,524.16/196,681.60 = 77,992.71/x
  3. Step 3: Cross multiply
    142,524.16x = 196,681.60 × 77,992.71
  4. Step 4: Simplify right side
    142,524.16x = 15,339,730,351.07
  5. Step 5: Solve for x
    x = 15,339,730,351.07/142,524.16
  6. Step 6: Final answer
    x = 107,628.98

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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.