Home / 154,834.60-213,674.07-86,866.60

Finding the Fourth Proportional to 154,834.60, 213,674.07 and 86,866.60

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Solution

The fourth proportional to 154,834.60, 213,674.07 and 86,866.60 is: 119,877.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,834.60 : 213,674.07 = 86,866.60 : x
  2. Step 2: Convert to fraction form
    154,834.60/213,674.07 = 86,866.60/x
  3. Step 3: Cross multiply
    154,834.60x = 213,674.07 × 86,866.60
  4. Step 4: Simplify right side
    154,834.60x = 18,561,139,969.06
  5. Step 5: Solve for x
    x = 18,561,139,969.06/154,834.60
  6. Step 6: Final answer
    x = 119,877.21

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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.