Home / 190,334.28-262,649.88-105,445.20

Finding the Fourth Proportional to 190,334.28, 262,649.88 and 105,445.20

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Solution

The fourth proportional to 190,334.28, 262,649.88 and 105,445.20 is: 145,508.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,334.28 : 262,649.88 = 105,445.20 : x
  2. Step 2: Convert to fraction form
    190,334.28/262,649.88 = 105,445.20/x
  3. Step 3: Cross multiply
    190,334.28x = 262,649.88 × 105,445.20
  4. Step 4: Simplify right side
    190,334.28x = 27,695,169,126.58
  5. Step 5: Solve for x
    x = 27,695,169,126.58/190,334.28
  6. Step 6: Final answer
    x = 145,508.05

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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.