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Finding the Fourth Proportional to 118,726.40, 163,846.10 and 65,016.40

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Solution

The fourth proportional to 118,726.40, 163,846.10 and 65,016.40 is: 89,724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,726.40 : 163,846.10 = 65,016.40 : x
  2. Step 2: Convert to fraction form
    118,726.40/163,846.10 = 65,016.40/x
  3. Step 3: Cross multiply
    118,726.40x = 163,846.10 × 65,016.40
  4. Step 4: Simplify right side
    118,726.40x = 10,652,683,576.04
  5. Step 5: Solve for x
    x = 10,652,683,576.04/118,726.40
  6. Step 6: Final answer
    x = 89,724.64

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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.