Home / 110,890.81-152,975.97-72,633.80

Finding the Fourth Proportional to 110,890.81, 152,975.97 and 72,633.80

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Solution

The fourth proportional to 110,890.81, 152,975.97 and 72,633.80 is: 100,199.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,890.81 : 152,975.97 = 72,633.80 : x
  2. Step 2: Convert to fraction form
    110,890.81/152,975.97 = 72,633.80/x
  3. Step 3: Cross multiply
    110,890.81x = 152,975.97 × 72,633.80
  4. Step 4: Simplify right side
    110,890.81x = 11,111,225,327.45
  5. Step 5: Solve for x
    x = 11,111,225,327.45/110,890.81
  6. Step 6: Final answer
    x = 100,199.70

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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.