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Finding the Fourth Proportional to 163,339.61, 225,461.50 and 105,877.55

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Solution

The fourth proportional to 163,339.61, 225,461.50 and 105,877.55 is: 146,145.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,339.61 : 225,461.50 = 105,877.55 : x
  2. Step 2: Convert to fraction form
    163,339.61/225,461.50 = 105,877.55/x
  3. Step 3: Cross multiply
    163,339.61x = 225,461.50 × 105,877.55
  4. Step 4: Simplify right side
    163,339.61x = 23,871,311,538.28
  5. Step 5: Solve for x
    x = 23,871,311,538.28/163,339.61
  6. Step 6: Final answer
    x = 146,145.28

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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.