Home / 143,500.79-215,242.47-53,526.15

Finding the Fourth Proportional to 143,500.79, 215,242.47 and 53,526.15

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Solution

The fourth proportional to 143,500.79, 215,242.47 and 53,526.15 is: 80,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,500.79 : 215,242.47 = 53,526.15 : x
  2. Step 2: Convert to fraction form
    143,500.79/215,242.47 = 53,526.15/x
  3. Step 3: Cross multiply
    143,500.79x = 215,242.47 × 53,526.15
  4. Step 4: Simplify right side
    143,500.79x = 11,521,101,542.75
  5. Step 5: Solve for x
    x = 11,521,101,542.75/143,500.79
  6. Step 6: Final answer
    x = 80,285.98

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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.