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Finding the Fourth Proportional to 163,473.68, 245,211.06 and 45,142.40

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Solution

The fourth proportional to 163,473.68, 245,211.06 and 45,142.40 is: 67,713.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,473.68 : 245,211.06 = 45,142.40 : x
  2. Step 2: Convert to fraction form
    163,473.68/245,211.06 = 45,142.40/x
  3. Step 3: Cross multiply
    163,473.68x = 245,211.06 × 45,142.40
  4. Step 4: Simplify right side
    163,473.68x = 11,069,415,754.94
  5. Step 5: Solve for x
    x = 11,069,415,754.94/163,473.68
  6. Step 6: Final answer
    x = 67,713.75

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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.