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Finding the Fourth Proportional to 145,740.94, 218,611.45 and 112,509.52

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Solution

The fourth proportional to 145,740.94, 218,611.45 and 112,509.52 is: 168,764.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,740.94 : 218,611.45 = 112,509.52 : x
  2. Step 2: Convert to fraction form
    145,740.94/218,611.45 = 112,509.52/x
  3. Step 3: Cross multiply
    145,740.94x = 218,611.45 × 112,509.52
  4. Step 4: Simplify right side
    145,740.94x = 24,595,869,306.00
  5. Step 5: Solve for x
    x = 24,595,869,306.00/145,740.94
  6. Step 6: Final answer
    x = 168,764.31

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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.