Home / 142,565.00-196,774.74-85,238.28

Finding the Fourth Proportional to 142,565.00, 196,774.74 and 85,238.28

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Solution

The fourth proportional to 142,565.00, 196,774.74 and 85,238.28 is: 117,649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,565.00 : 196,774.74 = 85,238.28 : x
  2. Step 2: Convert to fraction form
    142,565.00/196,774.74 = 85,238.28/x
  3. Step 3: Cross multiply
    142,565.00x = 196,774.74 × 85,238.28
  4. Step 4: Simplify right side
    142,565.00x = 16,772,740,385.05
  5. Step 5: Solve for x
    x = 16,772,740,385.05/142,565.00
  6. Step 6: Final answer
    x = 117,649.78

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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.