Home / 185,526.50-256,027.07-100,643.57

Finding the Fourth Proportional to 185,526.50, 256,027.07 and 100,643.57

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Solution

The fourth proportional to 185,526.50, 256,027.07 and 100,643.57 is: 138,888.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,526.50 : 256,027.07 = 100,643.57 : x
  2. Step 2: Convert to fraction form
    185,526.50/256,027.07 = 100,643.57/x
  3. Step 3: Cross multiply
    185,526.50x = 256,027.07 × 100,643.57
  4. Step 4: Simplify right side
    185,526.50x = 25,767,477,129.73
  5. Step 5: Solve for x
    x = 25,767,477,129.73/185,526.50
  6. Step 6: Final answer
    x = 138,888.39

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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.