Home / 127,428.32-191,064.72-52,525.28

Finding the Fourth Proportional to 127,428.32, 191,064.72 and 52,525.28

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Solution

The fourth proportional to 127,428.32, 191,064.72 and 52,525.28 is: 78,755.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,428.32 : 191,064.72 = 52,525.28 : x
  2. Step 2: Convert to fraction form
    127,428.32/191,064.72 = 52,525.28/x
  3. Step 3: Cross multiply
    127,428.32x = 191,064.72 × 52,525.28
  4. Step 4: Simplify right side
    127,428.32x = 10,035,727,916.12
  5. Step 5: Solve for x
    x = 10,035,727,916.12/127,428.32
  6. Step 6: Final answer
    x = 78,755.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.