Home / 127,029-190,551.48-42,782.28

Finding the Fourth Proportional to 127,029, 190,551.48 and 42,782.28

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Solution

The fourth proportional to 127,029, 190,551.48 and 42,782.28 is: 64,176.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,029 : 190,551.48 = 42,782.28 : x
  2. Step 2: Convert to fraction form
    127,029/190,551.48 = 42,782.28/x
  3. Step 3: Cross multiply
    127,029x = 190,551.48 × 42,782.28
  4. Step 4: Simplify right side
    127,029x = 8,152,226,771.77
  5. Step 5: Solve for x
    x = 8,152,226,771.77/127,029
  6. Step 6: Final answer
    x = 64,176.11

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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.