Home / 149,440.08-206,239.65-85,790.16

Finding the Fourth Proportional to 149,440.08, 206,239.65 and 85,790.16

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Solution

The fourth proportional to 149,440.08, 206,239.65 and 85,790.16 is: 118,397.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,440.08 : 206,239.65 = 85,790.16 : x
  2. Step 2: Convert to fraction form
    149,440.08/206,239.65 = 85,790.16/x
  3. Step 3: Cross multiply
    149,440.08x = 206,239.65 × 85,790.16
  4. Step 4: Simplify right side
    149,440.08x = 17,693,332,571.84
  5. Step 5: Solve for x
    x = 17,693,332,571.84/149,440.08
  6. Step 6: Final answer
    x = 118,397.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.