Home / 111,386.86-153,722.02-63,639.19

Finding the Fourth Proportional to 111,386.86, 153,722.02 and 63,639.19

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Solution

The fourth proportional to 111,386.86, 153,722.02 and 63,639.19 is: 87,826.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,386.86 : 153,722.02 = 63,639.19 : x
  2. Step 2: Convert to fraction form
    111,386.86/153,722.02 = 63,639.19/x
  3. Step 3: Cross multiply
    111,386.86x = 153,722.02 × 63,639.19
  4. Step 4: Simplify right side
    111,386.86x = 9,782,743,910.26
  5. Step 5: Solve for x
    x = 9,782,743,910.26/111,386.86
  6. Step 6: Final answer
    x = 87,826.73

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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.