Home / 144,110.61-198,870.80-80,449.47

Finding the Fourth Proportional to 144,110.61, 198,870.80 and 80,449.47

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Solution

The fourth proportional to 144,110.61, 198,870.80 and 80,449.47 is: 111,019.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,110.61 : 198,870.80 = 80,449.47 : x
  2. Step 2: Convert to fraction form
    144,110.61/198,870.80 = 80,449.47/x
  3. Step 3: Cross multiply
    144,110.61x = 198,870.80 × 80,449.47
  4. Step 4: Simplify right side
    144,110.61x = 15,999,050,056.23
  5. Step 5: Solve for x
    x = 15,999,050,056.23/144,110.61
  6. Step 6: Final answer
    x = 111,019.24

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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.