Home / 112,905.47-169,358.50-38,078.18

Finding the Fourth Proportional to 112,905.47, 169,358.50 and 38,078.18

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Solution

The fourth proportional to 112,905.47, 169,358.50 and 38,078.18 is: 57,117.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,905.47 : 169,358.50 = 38,078.18 : x
  2. Step 2: Convert to fraction form
    112,905.47/169,358.50 = 38,078.18/x
  3. Step 3: Cross multiply
    112,905.47x = 169,358.50 × 38,078.18
  4. Step 4: Simplify right side
    112,905.47x = 6,448,863,283.43
  5. Step 5: Solve for x
    x = 6,448,863,283.43/112,905.47
  6. Step 6: Final answer
    x = 57,117.37

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1.5x scale

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.