Home / 140,538.40-210,734.70-51,746.20

Finding the Fourth Proportional to 140,538.40, 210,734.70 and 51,746.20

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Solution

The fourth proportional to 140,538.40, 210,734.70 and 51,746.20 is: 77,592.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,538.40 : 210,734.70 = 51,746.20 : x
  2. Step 2: Convert to fraction form
    140,538.40/210,734.70 = 51,746.20/x
  3. Step 3: Cross multiply
    140,538.40x = 210,734.70 × 51,746.20
  4. Step 4: Simplify right side
    140,538.40x = 10,904,719,933.14
  5. Step 5: Solve for x
    x = 10,904,719,933.14/140,538.40
  6. Step 6: Final answer
    x = 77,592.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.