Home / 143,092.53-197,457.81-79,425.32

Finding the Fourth Proportional to 143,092.53, 197,457.81 and 79,425.32

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Solution

The fourth proportional to 143,092.53, 197,457.81 and 79,425.32 is: 109,601.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,092.53 : 197,457.81 = 79,425.32 : x
  2. Step 2: Convert to fraction form
    143,092.53/197,457.81 = 79,425.32/x
  3. Step 3: Cross multiply
    143,092.53x = 197,457.81 × 79,425.32
  4. Step 4: Simplify right side
    143,092.53x = 15,683,148,758.46
  5. Step 5: Solve for x
    x = 15,683,148,758.46/143,092.53
  6. Step 6: Final answer
    x = 109,601.45

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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.