Home / 185,662.06-256,213.95-100,779.10

Finding the Fourth Proportional to 185,662.06, 256,213.95 and 100,779.10

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Solution

The fourth proportional to 185,662.06, 256,213.95 and 100,779.10 is: 139,075.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,662.06 : 256,213.95 = 100,779.10 : x
  2. Step 2: Convert to fraction form
    185,662.06/256,213.95 = 100,779.10/x
  3. Step 3: Cross multiply
    185,662.06x = 256,213.95 × 100,779.10
  4. Step 4: Simplify right side
    185,662.06x = 25,821,011,288.45
  5. Step 5: Solve for x
    x = 25,821,011,288.45/185,662.06
  6. Step 6: Final answer
    x = 139,075.32

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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.