Home / 143,092.40-197,457.64-79,425.19

Finding the Fourth Proportional to 143,092.40, 197,457.64 and 79,425.19

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Solution

The fourth proportional to 143,092.40, 197,457.64 and 79,425.19 is: 109,601.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,092.40 : 197,457.64 = 79,425.19 : x
  2. Step 2: Convert to fraction form
    143,092.40/197,457.64 = 79,425.19/x
  3. Step 3: Cross multiply
    143,092.40x = 197,457.64 × 79,425.19
  4. Step 4: Simplify right side
    143,092.40x = 15,683,109,881.74
  5. Step 5: Solve for x
    x = 15,683,109,881.74/143,092.40
  6. Step 6: Final answer
    x = 109,601.28

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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.