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Finding the Fourth Proportional to 118,436.45, 163,444.43 and 64,723.73

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Solution

The fourth proportional to 118,436.45, 163,444.43 and 64,723.73 is: 89,319.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,436.45 : 163,444.43 = 64,723.73 : x
  2. Step 2: Convert to fraction form
    118,436.45/163,444.43 = 64,723.73/x
  3. Step 3: Cross multiply
    118,436.45x = 163,444.43 × 64,723.73
  4. Step 4: Simplify right side
    118,436.45x = 10,578,732,501.91
  5. Step 5: Solve for x
    x = 10,578,732,501.91/118,436.45
  6. Step 6: Final answer
    x = 89,319.91

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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.