Home / 260,127.94-390,223.16-91,613.44

Finding the Fourth Proportional to 260,127.94, 390,223.16 and 91,613.44

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Solution

The fourth proportional to 260,127.94, 390,223.16 and 91,613.44 is: 137,431.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,127.94 : 390,223.16 = 91,613.44 : x
  2. Step 2: Convert to fraction form
    260,127.94/390,223.16 = 91,613.44/x
  3. Step 3: Cross multiply
    260,127.94x = 390,223.16 × 91,613.44
  4. Step 4: Simplify right side
    260,127.94x = 35,749,686,055.27
  5. Step 5: Solve for x
    x = 35,749,686,055.27/260,127.94
  6. Step 6: Final answer
    x = 137,431.17

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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.