Home / 143,126.30-197,506.58-79,460.00

Finding the Fourth Proportional to 143,126.30, 197,506.58 and 79,460.00

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Solution

The fourth proportional to 143,126.30, 197,506.58 and 79,460.00 is: 109,650.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,126.30 : 197,506.58 = 79,460.00 : x
  2. Step 2: Convert to fraction form
    143,126.30/197,506.58 = 79,460.00/x
  3. Step 3: Cross multiply
    143,126.30x = 197,506.58 × 79,460.00
  4. Step 4: Simplify right side
    143,126.30x = 15,693,871,461.97
  5. Step 5: Solve for x
    x = 15,693,871,461.97/143,126.30
  6. Step 6: Final answer
    x = 109,650.51

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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.