Home / 154,709.16-213,487.56-91,038.30

Finding the Fourth Proportional to 154,709.16, 213,487.56 and 91,038.30

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Solution

The fourth proportional to 154,709.16, 213,487.56 and 91,038.30 is: 125,626.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,709.16 : 213,487.56 = 91,038.30 : x
  2. Step 2: Convert to fraction form
    154,709.16/213,487.56 = 91,038.30/x
  3. Step 3: Cross multiply
    154,709.16x = 213,487.56 × 91,038.30
  4. Step 4: Simplify right side
    154,709.16x = 19,435,544,533.55
  5. Step 5: Solve for x
    x = 19,435,544,533.55/154,709.16
  6. Step 6: Final answer
    x = 125,626.33

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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.