Home / 145,846.21-218,905.86-89,795.74

Finding the Fourth Proportional to 145,846.21, 218,905.86 and 89,795.74

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Solution

The fourth proportional to 145,846.21, 218,905.86 and 89,795.74 is: 134,777.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,846.21 : 218,905.86 = 89,795.74 : x
  2. Step 2: Convert to fraction form
    145,846.21/218,905.86 = 89,795.74/x
  3. Step 3: Cross multiply
    145,846.21x = 218,905.86 × 89,795.74
  4. Step 4: Simplify right side
    145,846.21x = 19,656,813,689.04
  5. Step 5: Solve for x
    x = 19,656,813,689.04/145,846.21
  6. Step 6: Final answer
    x = 134,777.68

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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.