Home / 125,743.47-173,495.62-79,786.36

Finding the Fourth Proportional to 125,743.47, 173,495.62 and 79,786.36

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Solution

The fourth proportional to 125,743.47, 173,495.62 and 79,786.36 is: 110,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,743.47 : 173,495.62 = 79,786.36 : x
  2. Step 2: Convert to fraction form
    125,743.47/173,495.62 = 79,786.36/x
  3. Step 3: Cross multiply
    125,743.47x = 173,495.62 × 79,786.36
  4. Step 4: Simplify right side
    125,743.47x = 13,842,584,312.35
  5. Step 5: Solve for x
    x = 13,842,584,312.35/125,743.47
  6. Step 6: Final answer
    x = 110,085.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.