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Finding the Fourth Proportional to 145,857.95, 218,823.84 and 40,676.92

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Solution

The fourth proportional to 145,857.95, 218,823.84 and 40,676.92 is: 61,025.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,857.95 : 218,823.84 = 40,676.92 : x
  2. Step 2: Convert to fraction form
    145,857.95/218,823.84 = 40,676.92/x
  3. Step 3: Cross multiply
    145,857.95x = 218,823.84 × 40,676.92
  4. Step 4: Simplify right side
    145,857.95x = 8,901,079,833.77
  5. Step 5: Solve for x
    x = 8,901,079,833.77/145,857.95
  6. Step 6: Final answer
    x = 61,025.67

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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.