Home / 186,220.26-279,111.47-86,169.06

Finding the Fourth Proportional to 186,220.26, 279,111.47 and 86,169.06

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Solution

The fourth proportional to 186,220.26, 279,111.47 and 86,169.06 is: 129,152.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,220.26 : 279,111.47 = 86,169.06 : x
  2. Step 2: Convert to fraction form
    186,220.26/279,111.47 = 86,169.06/x
  3. Step 3: Cross multiply
    186,220.26x = 279,111.47 × 86,169.06
  4. Step 4: Simplify right side
    186,220.26x = 24,050,772,574.27
  5. Step 5: Solve for x
    x = 24,050,772,574.27/186,220.26
  6. Step 6: Final answer
    x = 129,152.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.