Home / 142,032.08-196,008.33-78,373.98

Finding the Fourth Proportional to 142,032.08, 196,008.33 and 78,373.98

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Solution

The fourth proportional to 142,032.08, 196,008.33 and 78,373.98 is: 108,158.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,032.08 : 196,008.33 = 78,373.98 : x
  2. Step 2: Convert to fraction form
    142,032.08/196,008.33 = 78,373.98/x
  3. Step 3: Cross multiply
    142,032.08x = 196,008.33 × 78,373.98
  4. Step 4: Simplify right side
    142,032.08x = 15,361,952,935.25
  5. Step 5: Solve for x
    x = 15,361,952,935.25/142,032.08
  6. Step 6: Final answer
    x = 108,158.34

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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.