Home / 143,590.28-215,477.58-69,677.96

Finding the Fourth Proportional to 143,590.28, 215,477.58 and 69,677.96

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Solution

The fourth proportional to 143,590.28, 215,477.58 and 69,677.96 is: 104,561.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,590.28 : 215,477.58 = 69,677.96 : x
  2. Step 2: Convert to fraction form
    143,590.28/215,477.58 = 69,677.96/x
  3. Step 3: Cross multiply
    143,590.28x = 215,477.58 × 69,677.96
  4. Step 4: Simplify right side
    143,590.28x = 15,014,038,200.14
  5. Step 5: Solve for x
    x = 15,014,038,200.14/143,590.28
  6. Step 6: Final answer
    x = 104,561.66

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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.