Home / 112,728.70-168,210.95-112,072.60

Finding the Fourth Proportional to 112,728.70, 168,210.95 and 112,072.60

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Solution

The fourth proportional to 112,728.70, 168,210.95 and 112,072.60 is: 167,231.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,728.70 : 168,210.95 = 112,072.60 : x
  2. Step 2: Convert to fraction form
    112,728.70/168,210.95 = 112,072.60/x
  3. Step 3: Cross multiply
    112,728.70x = 168,210.95 × 112,072.60
  4. Step 4: Simplify right side
    112,728.70x = 18,851,838,514.97
  5. Step 5: Solve for x
    x = 18,851,838,514.97/112,728.70
  6. Step 6: Final answer
    x = 167,231.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.