Home / 140,534.90-210,729.45-51,742.70

Finding the Fourth Proportional to 140,534.90, 210,729.45 and 51,742.70

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Solution

The fourth proportional to 140,534.90, 210,729.45 and 51,742.70 is: 77,587.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,534.90 : 210,729.45 = 51,742.70 : x
  2. Step 2: Convert to fraction form
    140,534.90/210,729.45 = 51,742.70/x
  3. Step 3: Cross multiply
    140,534.90x = 210,729.45 × 51,742.70
  4. Step 4: Simplify right side
    140,534.90x = 10,903,710,712.52
  5. Step 5: Solve for x
    x = 10,903,710,712.52/140,534.90
  6. Step 6: Final answer
    x = 77,587.21

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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.