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Finding the Fourth Proportional to 104,649.40, 156,970.60 and 45,485.08

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Solution

The fourth proportional to 104,649.40, 156,970.60 and 45,485.08 is: 68,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,649.40 : 156,970.60 = 45,485.08 : x
  2. Step 2: Convert to fraction form
    104,649.40/156,970.60 = 45,485.08/x
  3. Step 3: Cross multiply
    104,649.40x = 156,970.60 × 45,485.08
  4. Step 4: Simplify right side
    104,649.40x = 7,139,820,298.65
  5. Step 5: Solve for x
    x = 7,139,820,298.65/104,649.40
  6. Step 6: Final answer
    x = 68,226.10

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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.