Home / 145,890.79-218,748.60-57,038.45

Finding the Fourth Proportional to 145,890.79, 218,748.60 and 57,038.45

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Solution

The fourth proportional to 145,890.79, 218,748.60 and 57,038.45 is: 85,523.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,890.79 : 218,748.60 = 57,038.45 : x
  2. Step 2: Convert to fraction form
    145,890.79/218,748.60 = 57,038.45/x
  3. Step 3: Cross multiply
    145,890.79x = 218,748.60 × 57,038.45
  4. Step 4: Simplify right side
    145,890.79x = 12,477,079,989.93
  5. Step 5: Solve for x
    x = 12,477,079,989.93/145,890.79
  6. Step 6: Final answer
    x = 85,523.43

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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.