Home / 142,026.51-195,913.93-91,021.12

Finding the Fourth Proportional to 142,026.51, 195,913.93 and 91,021.12

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Solution

The fourth proportional to 142,026.51, 195,913.93 and 91,021.12 is: 125,556.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,026.51 : 195,913.93 = 91,021.12 : x
  2. Step 2: Convert to fraction form
    142,026.51/195,913.93 = 91,021.12/x
  3. Step 3: Cross multiply
    142,026.51x = 195,913.93 × 91,021.12
  4. Step 4: Simplify right side
    142,026.51x = 17,832,305,332.20
  5. Step 5: Solve for x
    x = 17,832,305,332.20/142,026.51
  6. Step 6: Final answer
    x = 125,556.17

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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.