Home / 186,763.10-257,816.57-126,516.72

Finding the Fourth Proportional to 186,763.10, 257,816.57 and 126,516.72

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Solution

The fourth proportional to 186,763.10, 257,816.57 and 126,516.72 is: 174,649.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,763.10 : 257,816.57 = 126,516.72 : x
  2. Step 2: Convert to fraction form
    186,763.10/257,816.57 = 126,516.72/x
  3. Step 3: Cross multiply
    186,763.10x = 257,816.57 × 126,516.72
  4. Step 4: Simplify right side
    186,763.10x = 32,618,106,165.47
  5. Step 5: Solve for x
    x = 32,618,106,165.47/186,763.10
  6. Step 6: Final answer
    x = 174,649.63

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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.