Home / 127,255.51-175,494.49-81,853.39

Finding the Fourth Proportional to 127,255.51, 175,494.49 and 81,853.39

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Solution

The fourth proportional to 127,255.51, 175,494.49 and 81,853.39 is: 112,881.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,255.51 : 175,494.49 = 81,853.39 : x
  2. Step 2: Convert to fraction form
    127,255.51/175,494.49 = 81,853.39/x
  3. Step 3: Cross multiply
    127,255.51x = 175,494.49 × 81,853.39
  4. Step 4: Simplify right side
    127,255.51x = 14,364,818,932.82
  5. Step 5: Solve for x
    x = 14,364,818,932.82/127,255.51
  6. Step 6: Final answer
    x = 112,881.70

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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.