Home / 476,115.06-714,218.70-139,148.16

Finding the Fourth Proportional to 476,115.06, 714,218.70 and 139,148.16

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Solution

The fourth proportional to 476,115.06, 714,218.70 and 139,148.16 is: 208,735.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,115.06 : 714,218.70 = 139,148.16 : x
  2. Step 2: Convert to fraction form
    476,115.06/714,218.70 = 139,148.16/x
  3. Step 3: Cross multiply
    476,115.06x = 714,218.70 × 139,148.16
  4. Step 4: Simplify right side
    476,115.06x = 99,382,217,942.59
  5. Step 5: Solve for x
    x = 99,382,217,942.59/476,115.06
  6. Step 6: Final answer
    x = 208,735.72

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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.