Home / 154,455.93-212,980.86-134,133.30

Finding the Fourth Proportional to 154,455.93, 212,980.86 and 134,133.30

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Solution

The fourth proportional to 154,455.93, 212,980.86 and 134,133.30 is: 184,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,455.93 : 212,980.86 = 134,133.30 : x
  2. Step 2: Convert to fraction form
    154,455.93/212,980.86 = 134,133.30/x
  3. Step 3: Cross multiply
    154,455.93x = 212,980.86 × 134,133.30
  4. Step 4: Simplify right side
    154,455.93x = 28,567,825,588.64
  5. Step 5: Solve for x
    x = 28,567,825,588.64/154,455.93
  6. Step 6: Final answer
    x = 184,957.78

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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.