Home / 142,968.02-197,292.78-79,304.45

Finding the Fourth Proportional to 142,968.02, 197,292.78 and 79,304.45

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Solution

The fourth proportional to 142,968.02, 197,292.78 and 79,304.45 is: 109,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,968.02 : 197,292.78 = 79,304.45 : x
  2. Step 2: Convert to fraction form
    142,968.02/197,292.78 = 79,304.45/x
  3. Step 3: Cross multiply
    142,968.02x = 197,292.78 × 79,304.45
  4. Step 4: Simplify right side
    142,968.02x = 15,646,194,420.41
  5. Step 5: Solve for x
    x = 15,646,194,420.41/142,968.02
  6. Step 6: Final answer
    x = 109,438.43

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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.