Home / 186,124.30-256,830.15-105,535.78

Finding the Fourth Proportional to 186,124.30, 256,830.15 and 105,535.78

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Solution

The fourth proportional to 186,124.30, 256,830.15 and 105,535.78 is: 145,627.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,124.30 : 256,830.15 = 105,535.78 : x
  2. Step 2: Convert to fraction form
    186,124.30/256,830.15 = 105,535.78/x
  3. Step 3: Cross multiply
    186,124.30x = 256,830.15 × 105,535.78
  4. Step 4: Simplify right side
    186,124.30x = 27,104,770,207.77
  5. Step 5: Solve for x
    x = 27,104,770,207.77/186,124.30
  6. Step 6: Final answer
    x = 145,627.25

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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.