Home / 186,272.81-257,049.35-105,695.53

Finding the Fourth Proportional to 186,272.81, 257,049.35 and 105,695.53

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Solution

The fourth proportional to 186,272.81, 257,049.35 and 105,695.53 is: 145,855.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,272.81 : 257,049.35 = 105,695.53 : x
  2. Step 2: Convert to fraction form
    186,272.81/257,049.35 = 105,695.53/x
  3. Step 3: Cross multiply
    186,272.81x = 257,049.35 × 105,695.53
  4. Step 4: Simplify right side
    186,272.81x = 27,168,967,955.57
  5. Step 5: Solve for x
    x = 27,168,967,955.57/186,272.81
  6. Step 6: Final answer
    x = 145,855.79

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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.