Home / 127,410.93-190,301.67-115,385.18

Finding the Fourth Proportional to 127,410.93, 190,301.67 and 115,385.18

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Solution

The fourth proportional to 127,410.93, 190,301.67 and 115,385.18 is: 172,339.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,410.93 : 190,301.67 = 115,385.18 : x
  2. Step 2: Convert to fraction form
    127,410.93/190,301.67 = 115,385.18/x
  3. Step 3: Cross multiply
    127,410.93x = 190,301.67 × 115,385.18
  4. Step 4: Simplify right side
    127,410.93x = 21,957,991,495.74
  5. Step 5: Solve for x
    x = 21,957,991,495.74/127,410.93
  6. Step 6: Final answer
    x = 172,339.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.