Home / 154,926.70-213,807.02-86,940.16

Finding the Fourth Proportional to 154,926.70, 213,807.02 and 86,940.16

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Solution

The fourth proportional to 154,926.70, 213,807.02 and 86,940.16 is: 119,982.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,926.70 : 213,807.02 = 86,940.16 : x
  2. Step 2: Convert to fraction form
    154,926.70/213,807.02 = 86,940.16/x
  3. Step 3: Cross multiply
    154,926.70x = 213,807.02 × 86,940.16
  4. Step 4: Simplify right side
    154,926.70x = 18,588,416,527.92
  5. Step 5: Solve for x
    x = 18,588,416,527.92/154,926.70
  6. Step 6: Final answer
    x = 119,982.01

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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.