Home / 112,038.20-168,057.30-100,374.20

Finding the Fourth Proportional to 112,038.20, 168,057.30 and 100,374.20

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Solution

The fourth proportional to 112,038.20, 168,057.30 and 100,374.20 is: 150,561.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,038.20 : 168,057.30 = 100,374.20 : x
  2. Step 2: Convert to fraction form
    112,038.20/168,057.30 = 100,374.20/x
  3. Step 3: Cross multiply
    112,038.20x = 168,057.30 × 100,374.20
  4. Step 4: Simplify right side
    112,038.20x = 16,868,617,041.66
  5. Step 5: Solve for x
    x = 16,868,617,041.66/112,038.20
  6. Step 6: Final answer
    x = 150,561.30

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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.