Home / 174,208.80-261,399.60-99,386.40

Finding the Fourth Proportional to 174,208.80, 261,399.60 and 99,386.40

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Solution

The fourth proportional to 174,208.80, 261,399.60 and 99,386.40 is: 149,128.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,208.80 : 261,399.60 = 99,386.40 : x
  2. Step 2: Convert to fraction form
    174,208.80/261,399.60 = 99,386.40/x
  3. Step 3: Cross multiply
    174,208.80x = 261,399.60 × 99,386.40
  4. Step 4: Simplify right side
    174,208.80x = 25,979,565,205.44
  5. Step 5: Solve for x
    x = 25,979,565,205.44/174,208.80
  6. Step 6: Final answer
    x = 149,128.89

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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.