Home / 186,288.72-257,071.88-101,403.96

Finding the Fourth Proportional to 186,288.72, 257,071.88 and 101,403.96

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Solution

The fourth proportional to 186,288.72, 257,071.88 and 101,403.96 is: 139,933.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,288.72 : 257,071.88 = 101,403.96 : x
  2. Step 2: Convert to fraction form
    186,288.72/257,071.88 = 101,403.96/x
  3. Step 3: Cross multiply
    186,288.72x = 257,071.88 × 101,403.96
  4. Step 4: Simplify right side
    186,288.72x = 26,068,106,636.64
  5. Step 5: Solve for x
    x = 26,068,106,636.64/186,288.72
  6. Step 6: Final answer
    x = 139,933.90

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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.