Home / 452,291.11-678,535.08-136,739.81

Finding the Fourth Proportional to 452,291.11, 678,535.08 and 136,739.81

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Solution

The fourth proportional to 452,291.11, 678,535.08 and 136,739.81 is: 205,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,291.11 : 678,535.08 = 136,739.81 : x
  2. Step 2: Convert to fraction form
    452,291.11/678,535.08 = 136,739.81/x
  3. Step 3: Cross multiply
    452,291.11x = 678,535.08 × 136,739.81
  4. Step 4: Simplify right side
    452,291.11x = 92,782,759,101.10
  5. Step 5: Solve for x
    x = 92,782,759,101.10/452,291.11
  6. Step 6: Final answer
    x = 205,139.47

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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.