Home / 126,851.47-190,203.29-47,971.85

Finding the Fourth Proportional to 126,851.47, 190,203.29 and 47,971.85

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Solution

The fourth proportional to 126,851.47, 190,203.29 and 47,971.85 is: 71,929.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,851.47 : 190,203.29 = 47,971.85 : x
  2. Step 2: Convert to fraction form
    126,851.47/190,203.29 = 47,971.85/x
  3. Step 3: Cross multiply
    126,851.47x = 190,203.29 × 47,971.85
  4. Step 4: Simplify right side
    126,851.47x = 9,124,402,686.41
  5. Step 5: Solve for x
    x = 9,124,402,686.41/126,851.47
  6. Step 6: Final answer
    x = 71,929.82

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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.