Home / 142,639.02-196,663.19-91,561.64

Finding the Fourth Proportional to 142,639.02, 196,663.19 and 91,561.64

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Solution

The fourth proportional to 142,639.02, 196,663.19 and 91,561.64 is: 126,240.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,639.02 : 196,663.19 = 91,561.64 : x
  2. Step 2: Convert to fraction form
    142,639.02/196,663.19 = 91,561.64/x
  3. Step 3: Cross multiply
    142,639.02x = 196,663.19 × 91,561.64
  4. Step 4: Simplify right side
    142,639.02x = 18,006,802,762.91
  5. Step 5: Solve for x
    x = 18,006,802,762.91/142,639.02
  6. Step 6: Final answer
    x = 126,240.37

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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.