Home / 154,263.94-212,882.66-86,280.75

Finding the Fourth Proportional to 154,263.94, 212,882.66 and 86,280.75

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Solution

The fourth proportional to 154,263.94, 212,882.66 and 86,280.75 is: 119,066.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,263.94 : 212,882.66 = 86,280.75 : x
  2. Step 2: Convert to fraction form
    154,263.94/212,882.66 = 86,280.75/x
  3. Step 3: Cross multiply
    154,263.94x = 212,882.66 × 86,280.75
  4. Step 4: Simplify right side
    154,263.94x = 18,367,674,818.89
  5. Step 5: Solve for x
    x = 18,367,674,818.89/154,263.94
  6. Step 6: Final answer
    x = 119,066.55

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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.