Home / 127,400.42-191,075.52-121,078.10

Finding the Fourth Proportional to 127,400.42, 191,075.52 and 121,078.10

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Solution

The fourth proportional to 127,400.42, 191,075.52 and 121,078.10 is: 181,593.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,400.42 : 191,075.52 = 121,078.10 : x
  2. Step 2: Convert to fraction form
    127,400.42/191,075.52 = 121,078.10/x
  3. Step 3: Cross multiply
    127,400.42x = 191,075.52 × 121,078.10
  4. Step 4: Simplify right side
    127,400.42x = 23,135,060,918.11
  5. Step 5: Solve for x
    x = 23,135,060,918.11/127,400.42
  6. Step 6: Final answer
    x = 181,593.29

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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.