Home / 186,307.17-257,137.42-109,821.72

Finding the Fourth Proportional to 186,307.17, 257,137.42 and 109,821.72

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Solution

The fourth proportional to 186,307.17, 257,137.42 and 109,821.72 is: 151,573.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,307.17 : 257,137.42 = 109,821.72 : x
  2. Step 2: Convert to fraction form
    186,307.17/257,137.42 = 109,821.72/x
  3. Step 3: Cross multiply
    186,307.17x = 257,137.42 × 109,821.72
  4. Step 4: Simplify right side
    186,307.17x = 28,239,273,740.76
  5. Step 5: Solve for x
    x = 28,239,273,740.76/186,307.17
  6. Step 6: Final answer
    x = 151,573.74

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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.