Home / 186,475.34-257,369.28-109,989.74

Finding the Fourth Proportional to 186,475.34, 257,369.28 and 109,989.74

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Solution

The fourth proportional to 186,475.34, 257,369.28 and 109,989.74 is: 151,805.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,475.34 : 257,369.28 = 109,989.74 : x
  2. Step 2: Convert to fraction form
    186,475.34/257,369.28 = 109,989.74/x
  3. Step 3: Cross multiply
    186,475.34x = 257,369.28 × 109,989.74
  4. Step 4: Simplify right side
    186,475.34x = 28,307,980,191.19
  5. Step 5: Solve for x
    x = 28,307,980,191.19/186,475.34
  6. Step 6: Final answer
    x = 151,805.49

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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.