Home / 115,066.51-158,781.68-64,075.39

Finding the Fourth Proportional to 115,066.51, 158,781.68 and 64,075.39

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Solution

The fourth proportional to 115,066.51, 158,781.68 and 64,075.39 is: 88,418.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,066.51 : 158,781.68 = 64,075.39 : x
  2. Step 2: Convert to fraction form
    115,066.51/158,781.68 = 64,075.39/x
  3. Step 3: Cross multiply
    115,066.51x = 158,781.68 × 64,075.39
  4. Step 4: Simplify right side
    115,066.51x = 10,173,997,750.48
  5. Step 5: Solve for x
    x = 10,173,997,750.48/115,066.51
  6. Step 6: Final answer
    x = 88,418.41

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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.