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Finding the Fourth Proportional to 143,897.40, 215,943.30 and 93,855.60

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Solution

The fourth proportional to 143,897.40, 215,943.30 and 93,855.60 is: 140,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,897.40 : 215,943.30 = 93,855.60 : x
  2. Step 2: Convert to fraction form
    143,897.40/215,943.30 = 93,855.60/x
  3. Step 3: Cross multiply
    143,897.40x = 215,943.30 × 93,855.60
  4. Step 4: Simplify right side
    143,897.40x = 20,267,487,987.48
  5. Step 5: Solve for x
    x = 20,267,487,987.48/143,897.40
  6. Step 6: Final answer
    x = 140,846.80

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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.