Home / 149,674.02-206,545-89,213.49

Finding the Fourth Proportional to 149,674.02, 206,545 and 89,213.49

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Solution

The fourth proportional to 149,674.02, 206,545 and 89,213.49 is: 123,111.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,674.02 : 206,545 = 89,213.49 : x
  2. Step 2: Convert to fraction form
    149,674.02/206,545 = 89,213.49/x
  3. Step 3: Cross multiply
    149,674.02x = 206,545 × 89,213.49
  4. Step 4: Simplify right side
    149,674.02x = 18,426,600,292.05
  5. Step 5: Solve for x
    x = 18,426,600,292.05/149,674.02
  6. Step 6: Final answer
    x = 123,111.55

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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.