Home / 140,123.21-210,218.15-45,353.39

Finding the Fourth Proportional to 140,123.21, 210,218.15 and 45,353.39

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Solution

The fourth proportional to 140,123.21, 210,218.15 and 45,353.39 is: 68,040.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,123.21 : 210,218.15 = 45,353.39 : x
  2. Step 2: Convert to fraction form
    140,123.21/210,218.15 = 45,353.39/x
  3. Step 3: Cross multiply
    140,123.21x = 210,218.15 × 45,353.39
  4. Step 4: Simplify right side
    140,123.21x = 9,534,104,804.32
  5. Step 5: Solve for x
    x = 9,534,104,804.32/140,123.21
  6. Step 6: Final answer
    x = 68,040.87

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1.5x scale

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.