Home / 127,853.63-176,458.80-76,917.84

Finding the Fourth Proportional to 127,853.63, 176,458.80 and 76,917.84

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Solution

The fourth proportional to 127,853.63, 176,458.80 and 76,917.84 is: 106,159.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,853.63 : 176,458.80 = 76,917.84 : x
  2. Step 2: Convert to fraction form
    127,853.63/176,458.80 = 76,917.84/x
  3. Step 3: Cross multiply
    127,853.63x = 176,458.80 × 76,917.84
  4. Step 4: Simplify right side
    127,853.63x = 13,572,830,860.58
  5. Step 5: Solve for x
    x = 13,572,830,860.58/127,853.63
  6. Step 6: Final answer
    x = 106,159.13

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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.