Home / 154,621.64-211,779.06-145,543.16

Finding the Fourth Proportional to 154,621.64, 211,779.06 and 145,543.16

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Solution

The fourth proportional to 154,621.64, 211,779.06 and 145,543.16 is: 199,344.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,621.64 : 211,779.06 = 145,543.16 : x
  2. Step 2: Convert to fraction form
    154,621.64/211,779.06 = 145,543.16/x
  3. Step 3: Cross multiply
    154,621.64x = 211,779.06 × 145,543.16
  4. Step 4: Simplify right side
    154,621.64x = 30,822,993,614.23
  5. Step 5: Solve for x
    x = 30,822,993,614.23/154,621.64
  6. Step 6: Final answer
    x = 199,344.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.