Home / 190,526.40-262,926-105,641.28

Finding the Fourth Proportional to 190,526.40, 262,926 and 105,641.28

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Solution

The fourth proportional to 190,526.40, 262,926 and 105,641.28 is: 145,784.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,526.40 : 262,926 = 105,641.28 : x
  2. Step 2: Convert to fraction form
    190,526.40/262,926 = 105,641.28/x
  3. Step 3: Cross multiply
    190,526.40x = 262,926 × 105,641.28
  4. Step 4: Simplify right side
    190,526.40x = 27,775,839,185.28
  5. Step 5: Solve for x
    x = 27,775,839,185.28/190,526.40
  6. Step 6: Final answer
    x = 145,784.73

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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.