Home / 142,995.96-197,358.03-79,354.26

Finding the Fourth Proportional to 142,995.96, 197,358.03 and 79,354.26

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Solution

The fourth proportional to 142,995.96, 197,358.03 and 79,354.26 is: 109,521.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,995.96 : 197,358.03 = 79,354.26 : x
  2. Step 2: Convert to fraction form
    142,995.96/197,358.03 = 79,354.26/x
  3. Step 3: Cross multiply
    142,995.96x = 197,358.03 × 79,354.26
  4. Step 4: Simplify right side
    142,995.96x = 15,661,200,425.71
  5. Step 5: Solve for x
    x = 15,661,200,425.71/142,995.96
  6. Step 6: Final answer
    x = 109,521.98

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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.