Home / 190,000.80-262,199.16-105,118.47

Finding the Fourth Proportional to 190,000.80, 262,199.16 and 105,118.47

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Solution

The fourth proportional to 190,000.80, 262,199.16 and 105,118.47 is: 145,062.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,000.80 : 262,199.16 = 105,118.47 : x
  2. Step 2: Convert to fraction form
    190,000.80/262,199.16 = 105,118.47/x
  3. Step 3: Cross multiply
    190,000.80x = 262,199.16 × 105,118.47
  4. Step 4: Simplify right side
    190,000.80x = 27,561,974,534.49
  5. Step 5: Solve for x
    x = 27,561,974,534.49/190,000.80
  6. Step 6: Final answer
    x = 145,062.41

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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.