Home / 142,455.39-213,622.34-42,613.98

Finding the Fourth Proportional to 142,455.39, 213,622.34 and 42,613.98

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Solution

The fourth proportional to 142,455.39, 213,622.34 and 42,613.98 is: 63,902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,455.39 : 213,622.34 = 42,613.98 : x
  2. Step 2: Convert to fraction form
    142,455.39/213,622.34 = 42,613.98/x
  3. Step 3: Cross multiply
    142,455.39x = 213,622.34 × 42,613.98
  4. Step 4: Simplify right side
    142,455.39x = 9,103,297,911.24
  5. Step 5: Solve for x
    x = 9,103,297,911.24/142,455.39
  6. Step 6: Final answer
    x = 63,902.80

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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.