Home / 112,020.40-168,030.60-84,026.80

Finding the Fourth Proportional to 112,020.40, 168,030.60 and 84,026.80

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Solution

The fourth proportional to 112,020.40, 168,030.60 and 84,026.80 is: 126,040.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,020.40 : 168,030.60 = 84,026.80 : x
  2. Step 2: Convert to fraction form
    112,020.40/168,030.60 = 84,026.80/x
  3. Step 3: Cross multiply
    112,020.40x = 168,030.60 × 84,026.80
  4. Step 4: Simplify right side
    112,020.40x = 14,119,073,620.08
  5. Step 5: Solve for x
    x = 14,119,073,620.08/112,020.40
  6. Step 6: Final answer
    x = 126,040.20

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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.