Home / 156,984.55-235,476.83-78,252.55

Finding the Fourth Proportional to 156,984.55, 235,476.83 and 78,252.55

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Solution

The fourth proportional to 156,984.55, 235,476.83 and 78,252.55 is: 117,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,984.55 : 235,476.83 = 78,252.55 : x
  2. Step 2: Convert to fraction form
    156,984.55/235,476.83 = 78,252.55/x
  3. Step 3: Cross multiply
    156,984.55x = 235,476.83 × 78,252.55
  4. Step 4: Simplify right side
    156,984.55x = 18,426,662,413.42
  5. Step 5: Solve for x
    x = 18,426,662,413.42/156,984.55
  6. Step 6: Final answer
    x = 117,378.83

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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.