Home / 142,957.56-197,280-79,295.16

Finding the Fourth Proportional to 142,957.56, 197,280 and 79,295.16

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Solution

The fourth proportional to 142,957.56, 197,280 and 79,295.16 is: 109,426.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,957.56 : 197,280 = 79,295.16 : x
  2. Step 2: Convert to fraction form
    142,957.56/197,280 = 79,295.16/x
  3. Step 3: Cross multiply
    142,957.56x = 197,280 × 79,295.16
  4. Step 4: Simplify right side
    142,957.56x = 15,643,349,164.80
  5. Step 5: Solve for x
    x = 15,643,349,164.80/142,957.56
  6. Step 6: Final answer
    x = 109,426.53

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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.