Home / 127,115.94-175,419.52-69,756.21

Finding the Fourth Proportional to 127,115.94, 175,419.52 and 69,756.21

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Solution

The fourth proportional to 127,115.94, 175,419.52 and 69,756.21 is: 96,263.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,115.94 : 175,419.52 = 69,756.21 : x
  2. Step 2: Convert to fraction form
    127,115.94/175,419.52 = 69,756.21/x
  3. Step 3: Cross multiply
    127,115.94x = 175,419.52 × 69,756.21
  4. Step 4: Simplify right side
    127,115.94x = 12,236,600,875.22
  5. Step 5: Solve for x
    x = 12,236,600,875.22/127,115.94
  6. Step 6: Final answer
    x = 96,263.31

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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.