Home / 186,753.42-257,728.86-105,107.22

Finding the Fourth Proportional to 186,753.42, 257,728.86 and 105,107.22

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Solution

The fourth proportional to 186,753.42, 257,728.86 and 105,107.22 is: 145,053.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,753.42 : 257,728.86 = 105,107.22 : x
  2. Step 2: Convert to fraction form
    186,753.42/257,728.86 = 105,107.22/x
  3. Step 3: Cross multiply
    186,753.42x = 257,728.86 × 105,107.22
  4. Step 4: Simplify right side
    186,753.42x = 27,089,163,988.37
  5. Step 5: Solve for x
    x = 27,089,163,988.37/186,753.42
  6. Step 6: Final answer
    x = 145,053.11

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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.