Home / 112,959.77-155,889.36-67,645.13

Finding the Fourth Proportional to 112,959.77, 155,889.36 and 67,645.13

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Solution

The fourth proportional to 112,959.77, 155,889.36 and 67,645.13 is: 93,353.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,959.77 : 155,889.36 = 67,645.13 : x
  2. Step 2: Convert to fraction form
    112,959.77/155,889.36 = 67,645.13/x
  3. Step 3: Cross multiply
    112,959.77x = 155,889.36 × 67,645.13
  4. Step 4: Simplify right side
    112,959.77x = 10,545,155,243.37
  5. Step 5: Solve for x
    x = 10,545,155,243.37/112,959.77
  6. Step 6: Final answer
    x = 93,353.20

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1.5x scale

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.