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Finding the Fourth Proportional to 84,235.95, 126,189.90 and 46,728.90

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Solution

The fourth proportional to 84,235.95, 126,189.90 and 46,728.90 is: 70,002.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,235.95 : 126,189.90 = 46,728.90 : x
  2. Step 2: Convert to fraction form
    84,235.95/126,189.90 = 46,728.90/x
  3. Step 3: Cross multiply
    84,235.95x = 126,189.90 × 46,728.90
  4. Step 4: Simplify right side
    84,235.95x = 5,896,715,218.11
  5. Step 5: Solve for x
    x = 5,896,715,218.11/84,235.95
  6. Step 6: Final answer
    x = 70,002.36

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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.