Home / 186,920.39-257,915.63-106,343.21

Finding the Fourth Proportional to 186,920.39, 257,915.63 and 106,343.21

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Solution

The fourth proportional to 186,920.39, 257,915.63 and 106,343.21 is: 146,734.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,920.39 : 257,915.63 = 106,343.21 : x
  2. Step 2: Convert to fraction form
    186,920.39/257,915.63 = 106,343.21/x
  3. Step 3: Cross multiply
    186,920.39x = 257,915.63 × 106,343.21
  4. Step 4: Simplify right side
    186,920.39x = 27,427,576,914.02
  5. Step 5: Solve for x
    x = 27,427,576,914.02/186,920.39
  6. Step 6: Final answer
    x = 146,734.00

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1.5x scale

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.