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Finding the Fourth Proportional to 163,940.66, 245,909.62 and 45,611.65

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Solution

The fourth proportional to 163,940.66, 245,909.62 and 45,611.65 is: 68,417.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,940.66 : 245,909.62 = 45,611.65 : x
  2. Step 2: Convert to fraction form
    163,940.66/245,909.62 = 45,611.65/x
  3. Step 3: Cross multiply
    163,940.66x = 245,909.62 × 45,611.65
  4. Step 4: Simplify right side
    163,940.66x = 11,216,343,519.07
  5. Step 5: Solve for x
    x = 11,216,343,519.07/163,940.66
  6. Step 6: Final answer
    x = 68,417.09

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1.5x scale

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.