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Finding the Fourth Proportional to 163,816.61, 225,980.21 and 112,740.66

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Solution

The fourth proportional to 163,816.61, 225,980.21 and 112,740.66 is: 155,522.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,816.61 : 225,980.21 = 112,740.66 : x
  2. Step 2: Convert to fraction form
    163,816.61/225,980.21 = 112,740.66/x
  3. Step 3: Cross multiply
    163,816.61x = 225,980.21 × 112,740.66
  4. Step 4: Simplify right side
    163,816.61x = 25,477,158,022.34
  5. Step 5: Solve for x
    x = 25,477,158,022.34/163,816.61
  6. Step 6: Final answer
    x = 155,522.44

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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.