Home / 117,642.44-162,280.86-72,288.92

Finding the Fourth Proportional to 117,642.44, 162,280.86 and 72,288.92

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Solution

The fourth proportional to 117,642.44, 162,280.86 and 72,288.92 is: 99,718.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,642.44 : 162,280.86 = 72,288.92 : x
  2. Step 2: Convert to fraction form
    117,642.44/162,280.86 = 72,288.92/x
  3. Step 3: Cross multiply
    117,642.44x = 162,280.86 × 72,288.92
  4. Step 4: Simplify right side
    117,642.44x = 11,731,108,106.07
  5. Step 5: Solve for x
    x = 11,731,108,106.07/117,642.44
  6. Step 6: Final answer
    x = 99,718.33

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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.