Home / 145,610.28-218,415.18-45,779.19

Finding the Fourth Proportional to 145,610.28, 218,415.18 and 45,779.19

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Solution

The fourth proportional to 145,610.28, 218,415.18 and 45,779.19 is: 68,668.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,610.28 : 218,415.18 = 45,779.19 : x
  2. Step 2: Convert to fraction form
    145,610.28/218,415.18 = 45,779.19/x
  3. Step 3: Cross multiply
    145,610.28x = 218,415.18 × 45,779.19
  4. Step 4: Simplify right side
    145,610.28x = 9,998,870,024.10
  5. Step 5: Solve for x
    x = 9,998,870,024.10/145,610.28
  6. Step 6: Final answer
    x = 68,668.71

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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.