Home / 236,184.21-354,239.80-86,389.47

Finding the Fourth Proportional to 236,184.21, 354,239.80 and 86,389.47

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Solution

The fourth proportional to 236,184.21, 354,239.80 and 86,389.47 is: 129,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,184.21 : 354,239.80 = 86,389.47 : x
  2. Step 2: Convert to fraction form
    236,184.21/354,239.80 = 86,389.47/x
  3. Step 3: Cross multiply
    236,184.21x = 354,239.80 × 86,389.47
  4. Step 4: Simplify right side
    236,184.21x = 30,602,588,358.93
  5. Step 5: Solve for x
    x = 30,602,588,358.93/236,184.21
  6. Step 6: Final answer
    x = 129,570.85

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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.