Home / 103,746.40-155,619.60-103,090.30

Finding the Fourth Proportional to 103,746.40, 155,619.60 and 103,090.30

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Solution

The fourth proportional to 103,746.40, 155,619.60 and 103,090.30 is: 154,635.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,746.40 : 155,619.60 = 103,090.30 : x
  2. Step 2: Convert to fraction form
    103,746.40/155,619.60 = 103,090.30/x
  3. Step 3: Cross multiply
    103,746.40x = 155,619.60 × 103,090.30
  4. Step 4: Simplify right side
    103,746.40x = 16,042,871,249.88
  5. Step 5: Solve for x
    x = 16,042,871,249.88/103,746.40
  6. Step 6: Final answer
    x = 154,635.45

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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.