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Finding the Fourth Proportional to 163,693.09, 225,969.24 and 127,312.21

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Solution

The fourth proportional to 163,693.09, 225,969.24 and 127,312.21 is: 175,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,693.09 : 225,969.24 = 127,312.21 : x
  2. Step 2: Convert to fraction form
    163,693.09/225,969.24 = 127,312.21/x
  3. Step 3: Cross multiply
    163,693.09x = 225,969.24 × 127,312.21
  4. Step 4: Simplify right side
    163,693.09x = 28,768,643,336.42
  5. Step 5: Solve for x
    x = 28,768,643,336.42/163,693.09
  6. Step 6: Final answer
    x = 175,747.45

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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.