Home / 140,156.87-210,263.00-51,411.20

Finding the Fourth Proportional to 140,156.87, 210,263.00 and 51,411.20

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Solution

The fourth proportional to 140,156.87, 210,263.00 and 51,411.20 is: 77,126.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,156.87 : 210,263.00 = 51,411.20 : x
  2. Step 2: Convert to fraction form
    140,156.87/210,263.00 = 51,411.20/x
  3. Step 3: Cross multiply
    140,156.87x = 210,263.00 × 51,411.20
  4. Step 4: Simplify right side
    140,156.87x = 10,809,871,837.23
  5. Step 5: Solve for x
    x = 10,809,871,837.23/140,156.87
  6. Step 6: Final answer
    x = 77,126.95

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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.