Home / 186,441.21-257,290.56-105,870.42

Finding the Fourth Proportional to 186,441.21, 257,290.56 and 105,870.42

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Solution

The fourth proportional to 186,441.21, 257,290.56 and 105,870.42 is: 146,102.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,441.21 : 257,290.56 = 105,870.42 : x
  2. Step 2: Convert to fraction form
    186,441.21/257,290.56 = 105,870.42/x
  3. Step 3: Cross multiply
    186,441.21x = 257,290.56 × 105,870.42
  4. Step 4: Simplify right side
    186,441.21x = 27,239,459,649.24
  5. Step 5: Solve for x
    x = 27,239,459,649.24/186,441.21
  6. Step 6: Final answer
    x = 146,102.14

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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.