Home / 105,870.30-146,099.20-58,123.30

Finding the Fourth Proportional to 105,870.30, 146,099.20 and 58,123.30

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Solution

The fourth proportional to 105,870.30, 146,099.20 and 58,123.30 is: 80,209.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,870.30 : 146,099.20 = 58,123.30 : x
  2. Step 2: Convert to fraction form
    105,870.30/146,099.20 = 58,123.30/x
  3. Step 3: Cross multiply
    105,870.30x = 146,099.20 × 58,123.30
  4. Step 4: Simplify right side
    105,870.30x = 8,491,767,631.36
  5. Step 5: Solve for x
    x = 8,491,767,631.36/105,870.30
  6. Step 6: Final answer
    x = 80,209.16

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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.