Home / 104,260.16-156,390.21-90,178.33

Finding the Fourth Proportional to 104,260.16, 156,390.21 and 90,178.33

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Solution

The fourth proportional to 104,260.16, 156,390.21 and 90,178.33 is: 135,267.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,260.16 : 156,390.21 = 90,178.33 : x
  2. Step 2: Convert to fraction form
    104,260.16/156,390.21 = 90,178.33/x
  3. Step 3: Cross multiply
    104,260.16x = 156,390.21 × 90,178.33
  4. Step 4: Simplify right side
    104,260.16x = 14,103,007,868.41
  5. Step 5: Solve for x
    x = 14,103,007,868.41/104,260.16
  6. Step 6: Final answer
    x = 135,267.46

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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.