Home / 190,421.22-285,671.88-72,089.94

Finding the Fourth Proportional to 190,421.22, 285,671.88 and 72,089.94

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Solution

The fourth proportional to 190,421.22, 285,671.88 and 72,089.94 is: 108,150.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,421.22 : 285,671.88 = 72,089.94 : x
  2. Step 2: Convert to fraction form
    190,421.22/285,671.88 = 72,089.94/x
  3. Step 3: Cross multiply
    190,421.22x = 285,671.88 × 72,089.94
  4. Step 4: Simplify right side
    190,421.22x = 20,594,068,688.89
  5. Step 5: Solve for x
    x = 20,594,068,688.89/190,421.22
  6. Step 6: Final answer
    x = 108,150.07

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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.