Home / 120,586.24-166,413.06-72,830.08

Finding the Fourth Proportional to 120,586.24, 166,413.06 and 72,830.08

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Solution

The fourth proportional to 120,586.24, 166,413.06 and 72,830.08 is: 100,507.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,586.24 : 166,413.06 = 72,830.08 : x
  2. Step 2: Convert to fraction form
    120,586.24/166,413.06 = 72,830.08/x
  3. Step 3: Cross multiply
    120,586.24x = 166,413.06 × 72,830.08
  4. Step 4: Simplify right side
    120,586.24x = 12,119,876,472.84
  5. Step 5: Solve for x
    x = 12,119,876,472.84/120,586.24
  6. Step 6: Final answer
    x = 100,507.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.