Home / 145,808.84-218,219.27-89,684.55

Finding the Fourth Proportional to 145,808.84, 218,219.27 and 89,684.55

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Solution

The fourth proportional to 145,808.84, 218,219.27 and 89,684.55 is: 134,222.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,808.84 : 218,219.27 = 89,684.55 : x
  2. Step 2: Convert to fraction form
    145,808.84/218,219.27 = 89,684.55/x
  3. Step 3: Cross multiply
    145,808.84x = 218,219.27 × 89,684.55
  4. Step 4: Simplify right side
    145,808.84x = 19,570,896,582.86
  5. Step 5: Solve for x
    x = 19,570,896,582.86/145,808.84
  6. Step 6: Final answer
    x = 134,222.97

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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.