Home / 105,816.32-146,030.74-58,071.38

Finding the Fourth Proportional to 105,816.32, 146,030.74 and 58,071.38

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Solution

The fourth proportional to 105,816.32, 146,030.74 and 58,071.38 is: 80,140.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,816.32 : 146,030.74 = 58,071.38 : x
  2. Step 2: Convert to fraction form
    105,816.32/146,030.74 = 58,071.38/x
  3. Step 3: Cross multiply
    105,816.32x = 146,030.74 × 58,071.38
  4. Step 4: Simplify right side
    105,816.32x = 8,480,206,594.22
  5. Step 5: Solve for x
    x = 8,480,206,594.22/105,816.32
  6. Step 6: Final answer
    x = 80,140.82

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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.