Home / 145,139.43-217,653.24-56,381.25

Finding the Fourth Proportional to 145,139.43, 217,653.24 and 56,381.25

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Solution

The fourth proportional to 145,139.43, 217,653.24 and 56,381.25 is: 84,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,139.43 : 217,653.24 = 56,381.25 : x
  2. Step 2: Convert to fraction form
    145,139.43/217,653.24 = 56,381.25/x
  3. Step 3: Cross multiply
    145,139.43x = 217,653.24 × 56,381.25
  4. Step 4: Simplify right side
    145,139.43x = 12,271,561,737.75
  5. Step 5: Solve for x
    x = 12,271,561,737.75/145,139.43
  6. Step 6: Final answer
    x = 84,550.16

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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.