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Finding the Fourth Proportional to 95,443.60, 143,165.40 and 90,000.40

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Solution

The fourth proportional to 95,443.60, 143,165.40 and 90,000.40 is: 135,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,443.60 : 143,165.40 = 90,000.40 : x
  2. Step 2: Convert to fraction form
    95,443.60/143,165.40 = 90,000.40/x
  3. Step 3: Cross multiply
    95,443.60x = 143,165.40 × 90,000.40
  4. Step 4: Simplify right side
    95,443.60x = 12,884,943,266.16
  5. Step 5: Solve for x
    x = 12,884,943,266.16/95,443.60
  6. Step 6: Final answer
    x = 135,000.60

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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.