Home / 112,021.40-168,032.10-84,027.80

Finding the Fourth Proportional to 112,021.40, 168,032.10 and 84,027.80

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Solution

The fourth proportional to 112,021.40, 168,032.10 and 84,027.80 is: 126,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,021.40 : 168,032.10 = 84,027.80 : x
  2. Step 2: Convert to fraction form
    112,021.40/168,032.10 = 84,027.80/x
  3. Step 3: Cross multiply
    112,021.40x = 168,032.10 × 84,027.80
  4. Step 4: Simplify right side
    112,021.40x = 14,119,367,692.38
  5. Step 5: Solve for x
    x = 14,119,367,692.38/112,021.40
  6. Step 6: Final answer
    x = 126,041.70

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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.