Home / 257,108.65-385,911.74-124,082.55

Finding the Fourth Proportional to 257,108.65, 385,911.74 and 124,082.55

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Solution

The fourth proportional to 257,108.65, 385,911.74 and 124,082.55 is: 186,243.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,108.65 : 385,911.74 = 124,082.55 : x
  2. Step 2: Convert to fraction form
    257,108.65/385,911.74 = 124,082.55/x
  3. Step 3: Cross multiply
    257,108.65x = 385,911.74 × 124,082.55
  4. Step 4: Simplify right side
    257,108.65x = 47,884,913,084.34
  5. Step 5: Solve for x
    x = 47,884,913,084.34/257,108.65
  6. Step 6: Final answer
    x = 186,243.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.