Home / 100,862.70-151,302.33-30,742.62

Finding the Fourth Proportional to 100,862.70, 151,302.33 and 30,742.62

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Solution

The fourth proportional to 100,862.70, 151,302.33 and 30,742.62 is: 46,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,862.70 : 151,302.33 = 30,742.62 : x
  2. Step 2: Convert to fraction form
    100,862.70/151,302.33 = 30,742.62/x
  3. Step 3: Cross multiply
    100,862.70x = 151,302.33 × 30,742.62
  4. Step 4: Simplify right side
    100,862.70x = 4,651,430,036.30
  5. Step 5: Solve for x
    x = 4,651,430,036.30/100,862.70
  6. Step 6: Final answer
    x = 46,116.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.