Home / 105,285.56-145,293.95-59,341.55

Finding the Fourth Proportional to 105,285.56, 145,293.95 and 59,341.55

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Solution

The fourth proportional to 105,285.56, 145,293.95 and 59,341.55 is: 81,891.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,285.56 : 145,293.95 = 59,341.55 : x
  2. Step 2: Convert to fraction form
    105,285.56/145,293.95 = 59,341.55/x
  3. Step 3: Cross multiply
    105,285.56x = 145,293.95 × 59,341.55
  4. Step 4: Simplify right side
    105,285.56x = 8,621,967,620.51
  5. Step 5: Solve for x
    x = 8,621,967,620.51/105,285.56
  6. Step 6: Final answer
    x = 81,891.27

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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.