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Finding the Fourth Proportional to 118,624.64, 163,702.00 and 64,909.65

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Solution

The fourth proportional to 118,624.64, 163,702.00 and 64,909.65 is: 89,575.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,624.64 : 163,702.00 = 64,909.65 : x
  2. Step 2: Convert to fraction form
    118,624.64/163,702.00 = 64,909.65/x
  3. Step 3: Cross multiply
    118,624.64x = 163,702.00 × 64,909.65
  4. Step 4: Simplify right side
    118,624.64x = 10,625,839,975.91
  5. Step 5: Solve for x
    x = 10,625,839,975.91/118,624.64
  6. Step 6: Final answer
    x = 89,575.32

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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.