Home / 142,774.28-197,051.70-136,474.76

Finding the Fourth Proportional to 142,774.28, 197,051.70 and 136,474.76

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Solution

The fourth proportional to 142,774.28, 197,051.70 and 136,474.76 is: 188,357.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,774.28 : 197,051.70 = 136,474.76 : x
  2. Step 2: Convert to fraction form
    142,774.28/197,051.70 = 136,474.76/x
  3. Step 3: Cross multiply
    142,774.28x = 197,051.70 × 136,474.76
  4. Step 4: Simplify right side
    142,774.28x = 26,892,583,465.09
  5. Step 5: Solve for x
    x = 26,892,583,465.09/142,774.28
  6. Step 6: Final answer
    x = 188,357.34

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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.