Home / 211,041.84-291,236.88-120,397.56

Finding the Fourth Proportional to 211,041.84, 291,236.88 and 120,397.56

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Solution

The fourth proportional to 211,041.84, 291,236.88 and 120,397.56 is: 166,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,041.84 : 291,236.88 = 120,397.56 : x
  2. Step 2: Convert to fraction form
    211,041.84/291,236.88 = 120,397.56/x
  3. Step 3: Cross multiply
    211,041.84x = 291,236.88 × 120,397.56
  4. Step 4: Simplify right side
    211,041.84x = 35,064,209,734.01
  5. Step 5: Solve for x
    x = 35,064,209,734.01/211,041.84
  6. Step 6: Final answer
    x = 166,148.14

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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.