Home / 145,140.87-217,794.21-56,382.81

Finding the Fourth Proportional to 145,140.87, 217,794.21 and 56,382.81

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Solution

The fourth proportional to 145,140.87, 217,794.21 and 56,382.81 is: 84,606.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,140.87 : 217,794.21 = 56,382.81 : x
  2. Step 2: Convert to fraction form
    145,140.87/217,794.21 = 56,382.81/x
  3. Step 3: Cross multiply
    145,140.87x = 217,794.21 × 56,382.81
  4. Step 4: Simplify right side
    145,140.87x = 12,279,849,561.53
  5. Step 5: Solve for x
    x = 12,279,849,561.53/145,140.87
  6. Step 6: Final answer
    x = 84,606.42

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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.