Home / 185,890.29-256,518.55-105,316.05

Finding the Fourth Proportional to 185,890.29, 256,518.55 and 105,316.05

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Solution

The fourth proportional to 185,890.29, 256,518.55 and 105,316.05 is: 145,330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,890.29 : 256,518.55 = 105,316.05 : x
  2. Step 2: Convert to fraction form
    185,890.29/256,518.55 = 105,316.05/x
  3. Step 3: Cross multiply
    185,890.29x = 256,518.55 × 105,316.05
  4. Step 4: Simplify right side
    185,890.29x = 27,015,519,496.00
  5. Step 5: Solve for x
    x = 27,015,519,496.00/185,890.29
  6. Step 6: Final answer
    x = 145,330.45

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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.