Home / 121,946.44-168,306-83,674.39

Finding the Fourth Proportional to 121,946.44, 168,306 and 83,674.39

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Solution

The fourth proportional to 121,946.44, 168,306 and 83,674.39 is: 115,484.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,946.44 : 168,306 = 83,674.39 : x
  2. Step 2: Convert to fraction form
    121,946.44/168,306 = 83,674.39/x
  3. Step 3: Cross multiply
    121,946.44x = 168,306 × 83,674.39
  4. Step 4: Simplify right side
    121,946.44x = 14,082,901,883.34
  5. Step 5: Solve for x
    x = 14,082,901,883.34/121,946.44
  6. Step 6: Final answer
    x = 115,484.32

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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.