Home / 140,156.81-210,256.02-45,355.22

Finding the Fourth Proportional to 140,156.81, 210,256.02 and 45,355.22

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Solution

The fourth proportional to 140,156.81, 210,256.02 and 45,355.22 is: 68,039.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,156.81 : 210,256.02 = 45,355.22 : x
  2. Step 2: Convert to fraction form
    140,156.81/210,256.02 = 45,355.22/x
  3. Step 3: Cross multiply
    140,156.81x = 210,256.02 × 45,355.22
  4. Step 4: Simplify right side
    140,156.81x = 9,536,208,043.42
  5. Step 5: Solve for x
    x = 9,536,208,043.42/140,156.81
  6. Step 6: Final answer
    x = 68,039.56

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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.