Home / 154,047.77-212,582.00-86,065.25

Finding the Fourth Proportional to 154,047.77, 212,582.00 and 86,065.25

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Solution

The fourth proportional to 154,047.77, 212,582.00 and 86,065.25 is: 118,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,047.77 : 212,582.00 = 86,065.25 : x
  2. Step 2: Convert to fraction form
    154,047.77/212,582.00 = 86,065.25/x
  3. Step 3: Cross multiply
    154,047.77x = 212,582.00 × 86,065.25
  4. Step 4: Simplify right side
    154,047.77x = 18,295,922,602.19
  5. Step 5: Solve for x
    x = 18,295,922,602.19/154,047.77
  6. Step 6: Final answer
    x = 118,767.85

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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.