Home / 104,003.10-156,004.65-99,920.70

Finding the Fourth Proportional to 104,003.10, 156,004.65 and 99,920.70

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Solution

The fourth proportional to 104,003.10, 156,004.65 and 99,920.70 is: 149,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,003.10 : 156,004.65 = 99,920.70 : x
  2. Step 2: Convert to fraction form
    104,003.10/156,004.65 = 99,920.70/x
  3. Step 3: Cross multiply
    104,003.10x = 156,004.65 × 99,920.70
  4. Step 4: Simplify right side
    104,003.10x = 15,588,093,831.26
  5. Step 5: Solve for x
    x = 15,588,093,831.26/104,003.10
  6. Step 6: Final answer
    x = 149,881.05

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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.