Home / 143,572.86-215,391.69-47,509.83

Finding the Fourth Proportional to 143,572.86, 215,391.69 and 47,509.83

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Solution

The fourth proportional to 143,572.86, 215,391.69 and 47,509.83 is: 71,275.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,572.86 : 215,391.69 = 47,509.83 : x
  2. Step 2: Convert to fraction form
    143,572.86/215,391.69 = 47,509.83/x
  3. Step 3: Cross multiply
    143,572.86x = 215,391.69 × 47,509.83
  4. Step 4: Simplify right side
    143,572.86x = 10,233,221,916.06
  5. Step 5: Solve for x
    x = 10,233,221,916.06/143,572.86
  6. Step 6: Final answer
    x = 71,275.46

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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.