Home / 142,907.92-197,220.81-79,244.35

Finding the Fourth Proportional to 142,907.92, 197,220.81 and 79,244.35

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Solution

The fourth proportional to 142,907.92, 197,220.81 and 79,244.35 is: 109,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,907.92 : 197,220.81 = 79,244.35 : x
  2. Step 2: Convert to fraction form
    142,907.92/197,220.81 = 79,244.35/x
  3. Step 3: Cross multiply
    142,907.92x = 197,220.81 × 79,244.35
  4. Step 4: Simplify right side
    142,907.92x = 15,628,634,894.92
  5. Step 5: Solve for x
    x = 15,628,634,894.92/142,907.92
  6. Step 6: Final answer
    x = 109,361.57

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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.