Home / 80,107.16-120,232.02-42,698.12

Finding the Fourth Proportional to 80,107.16, 120,232.02 and 42,698.12

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Solution

The fourth proportional to 80,107.16, 120,232.02 and 42,698.12 is: 64,085.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,107.16 : 120,232.02 = 42,698.12 : x
  2. Step 2: Convert to fraction form
    80,107.16/120,232.02 = 42,698.12/x
  3. Step 3: Cross multiply
    80,107.16x = 120,232.02 × 42,698.12
  4. Step 4: Simplify right side
    80,107.16x = 5,133,681,678.50
  5. Step 5: Solve for x
    x = 5,133,681,678.50/80,107.16
  6. Step 6: Final answer
    x = 64,085.18

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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.