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Finding the Fourth Proportional to 104,980.40, 157,470.60 and 103,506.20

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Solution

The fourth proportional to 104,980.40, 157,470.60 and 103,506.20 is: 155,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,980.40 : 157,470.60 = 103,506.20 : x
  2. Step 2: Convert to fraction form
    104,980.40/157,470.60 = 103,506.20/x
  3. Step 3: Cross multiply
    104,980.40x = 157,470.60 × 103,506.20
  4. Step 4: Simplify right side
    104,980.40x = 16,299,183,417.72
  5. Step 5: Solve for x
    x = 16,299,183,417.72/104,980.40
  6. Step 6: Final answer
    x = 155,259.30

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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.