Home / 111,116.61-153,339.75-60,128.19

Finding the Fourth Proportional to 111,116.61, 153,339.75 and 60,128.19

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Solution

The fourth proportional to 111,116.61, 153,339.75 and 60,128.19 is: 82,976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,116.61 : 153,339.75 = 60,128.19 : x
  2. Step 2: Convert to fraction form
    111,116.61/153,339.75 = 60,128.19/x
  3. Step 3: Cross multiply
    111,116.61x = 153,339.75 × 60,128.19
  4. Step 4: Simplify right side
    111,116.61x = 9,220,041,622.55
  5. Step 5: Solve for x
    x = 9,220,041,622.55/111,116.61
  6. Step 6: Final answer
    x = 82,976.27

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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.