Home / 142,666.02-196,878.93-79,003.74

Finding the Fourth Proportional to 142,666.02, 196,878.93 and 79,003.74

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Solution

The fourth proportional to 142,666.02, 196,878.93 and 79,003.74 is: 109,025.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,666.02 : 196,878.93 = 79,003.74 : x
  2. Step 2: Convert to fraction form
    142,666.02/196,878.93 = 79,003.74/x
  3. Step 3: Cross multiply
    142,666.02x = 196,878.93 × 79,003.74
  4. Step 4: Simplify right side
    142,666.02x = 15,554,171,797.20
  5. Step 5: Solve for x
    x = 15,554,171,797.20/142,666.02
  6. Step 6: Final answer
    x = 109,025.06

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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.