Home / 105,816.06-146,030.40-58,071.12

Finding the Fourth Proportional to 105,816.06, 146,030.40 and 58,071.12

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Solution

The fourth proportional to 105,816.06, 146,030.40 and 58,071.12 is: 80,140.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,816.06 : 146,030.40 = 58,071.12 : x
  2. Step 2: Convert to fraction form
    105,816.06/146,030.40 = 58,071.12/x
  3. Step 3: Cross multiply
    105,816.06x = 146,030.40 × 58,071.12
  4. Step 4: Simplify right side
    105,816.06x = 8,480,148,882.05
  5. Step 5: Solve for x
    x = 8,480,148,882.05/105,816.06
  6. Step 6: Final answer
    x = 80,140.47

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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.