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Finding the Fourth Proportional to 118,611.48, 163,657.08 and 70,855.50

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Solution

The fourth proportional to 118,611.48, 163,657.08 and 70,855.50 is: 97,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,611.48 : 163,657.08 = 70,855.50 : x
  2. Step 2: Convert to fraction form
    118,611.48/163,657.08 = 70,855.50/x
  3. Step 3: Cross multiply
    118,611.48x = 163,657.08 × 70,855.50
  4. Step 4: Simplify right side
    118,611.48x = 11,596,004,231.94
  5. Step 5: Solve for x
    x = 11,596,004,231.94/118,611.48
  6. Step 6: Final answer
    x = 97,764.60

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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.