Home / 145,405.06-218,107.26-45,572.86

Finding the Fourth Proportional to 145,405.06, 218,107.26 and 45,572.86

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Solution

The fourth proportional to 145,405.06, 218,107.26 and 45,572.86 is: 68,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,405.06 : 218,107.26 = 45,572.86 : x
  2. Step 2: Convert to fraction form
    145,405.06/218,107.26 = 45,572.86/x
  3. Step 3: Cross multiply
    145,405.06x = 218,107.26 × 45,572.86
  4. Step 4: Simplify right side
    145,405.06x = 9,939,771,624.96
  5. Step 5: Solve for x
    x = 9,939,771,624.96/145,405.06
  6. Step 6: Final answer
    x = 68,359.19

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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.