Home / 105,003.10-157,504.65-103,620.70

Finding the Fourth Proportional to 105,003.10, 157,504.65 and 103,620.70

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Solution

The fourth proportional to 105,003.10, 157,504.65 and 103,620.70 is: 155,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,003.10 : 157,504.65 = 103,620.70 : x
  2. Step 2: Convert to fraction form
    105,003.10/157,504.65 = 103,620.70/x
  3. Step 3: Cross multiply
    105,003.10x = 157,504.65 × 103,620.70
  4. Step 4: Simplify right side
    105,003.10x = 16,320,742,086.26
  5. Step 5: Solve for x
    x = 16,320,742,086.26/105,003.10
  6. Step 6: Final answer
    x = 155,431.05

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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.