Home / 142,636.55-213,957.25-53,931.83

Finding the Fourth Proportional to 142,636.55, 213,957.25 and 53,931.83

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Solution

The fourth proportional to 142,636.55, 213,957.25 and 53,931.83 is: 80,898.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,636.55 : 213,957.25 = 53,931.83 : x
  2. Step 2: Convert to fraction form
    142,636.55/213,957.25 = 53,931.83/x
  3. Step 3: Cross multiply
    142,636.55x = 213,957.25 × 53,931.83
  4. Step 4: Simplify right side
    142,636.55x = 11,539,104,829.65
  5. Step 5: Solve for x
    x = 11,539,104,829.65/142,636.55
  6. Step 6: Final answer
    x = 80,898.66

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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.