Home / 145,160.72-217,685.08-56,402.54

Finding the Fourth Proportional to 145,160.72, 217,685.08 and 56,402.54

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Solution

The fourth proportional to 145,160.72, 217,685.08 and 56,402.54 is: 84,582.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,160.72 : 217,685.08 = 56,402.54 : x
  2. Step 2: Convert to fraction form
    145,160.72/217,685.08 = 56,402.54/x
  3. Step 3: Cross multiply
    145,160.72x = 217,685.08 × 56,402.54
  4. Step 4: Simplify right side
    145,160.72x = 12,277,991,432.10
  5. Step 5: Solve for x
    x = 12,277,991,432.10/145,160.72
  6. Step 6: Final answer
    x = 84,582.05

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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.