Home / 186,316.18-257,072.60-105,725.50

Finding the Fourth Proportional to 186,316.18, 257,072.60 and 105,725.50

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Solution

The fourth proportional to 186,316.18, 257,072.60 and 105,725.50 is: 145,876.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,316.18 : 257,072.60 = 105,725.50 : x
  2. Step 2: Convert to fraction form
    186,316.18/257,072.60 = 105,725.50/x
  3. Step 3: Cross multiply
    186,316.18x = 257,072.60 × 105,725.50
  4. Step 4: Simplify right side
    186,316.18x = 27,179,129,171.30
  5. Step 5: Solve for x
    x = 27,179,129,171.30/186,316.18
  6. Step 6: Final answer
    x = 145,876.38

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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.