Home / 127,299.32-175,720.40-109,322.20

Finding the Fourth Proportional to 127,299.32, 175,720.40 and 109,322.20

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Solution

The fourth proportional to 127,299.32, 175,720.40 and 109,322.20 is: 150,905.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,299.32 : 175,720.40 = 109,322.20 : x
  2. Step 2: Convert to fraction form
    127,299.32/175,720.40 = 109,322.20/x
  3. Step 3: Cross multiply
    127,299.32x = 175,720.40 × 109,322.20
  4. Step 4: Simplify right side
    127,299.32x = 19,210,140,712.88
  5. Step 5: Solve for x
    x = 19,210,140,712.88/127,299.32
  6. Step 6: Final answer
    x = 150,905.29

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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.