Home / 186,120.41-256,891.79-105,595.07

Finding the Fourth Proportional to 186,120.41, 256,891.79 and 105,595.07

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Solution

The fourth proportional to 186,120.41, 256,891.79 and 105,595.07 is: 145,747.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,120.41 : 256,891.79 = 105,595.07 : x
  2. Step 2: Convert to fraction form
    186,120.41/256,891.79 = 105,595.07/x
  3. Step 3: Cross multiply
    186,120.41x = 256,891.79 × 105,595.07
  4. Step 4: Simplify right side
    186,120.41x = 27,126,506,019.50
  5. Step 5: Solve for x
    x = 27,126,506,019.50/186,120.41
  6. Step 6: Final answer
    x = 145,747.08

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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.