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Finding the Fourth Proportional to 118,283.95, 162,817.52 and 103,149.91

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Solution

The fourth proportional to 118,283.95, 162,817.52 and 103,149.91 is: 141,985.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,283.95 : 162,817.52 = 103,149.91 : x
  2. Step 2: Convert to fraction form
    118,283.95/162,817.52 = 103,149.91/x
  3. Step 3: Cross multiply
    118,283.95x = 162,817.52 × 103,149.91
  4. Step 4: Simplify right side
    118,283.95x = 16,794,611,596.46
  5. Step 5: Solve for x
    x = 16,794,611,596.46/118,283.95
  6. Step 6: Final answer
    x = 141,985.55

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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.