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Finding the Fourth Proportional to 146,666.40, 219,999.60 and 71,798.10

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Solution

The fourth proportional to 146,666.40, 219,999.60 and 71,798.10 is: 107,697.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,666.40 : 219,999.60 = 71,798.10 : x
  2. Step 2: Convert to fraction form
    146,666.40/219,999.60 = 71,798.10/x
  3. Step 3: Cross multiply
    146,666.40x = 219,999.60 × 71,798.10
  4. Step 4: Simplify right side
    146,666.40x = 15,795,553,280.76
  5. Step 5: Solve for x
    x = 15,795,553,280.76/146,666.40
  6. Step 6: Final answer
    x = 107,697.15

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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.