Home / 145,865.21-218,834.76-40,684.16

Finding the Fourth Proportional to 145,865.21, 218,834.76 and 40,684.16

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Solution

The fourth proportional to 145,865.21, 218,834.76 and 40,684.16 is: 61,036.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,865.21 : 218,834.76 = 40,684.16 : x
  2. Step 2: Convert to fraction form
    145,865.21/218,834.76 = 40,684.16/x
  3. Step 3: Cross multiply
    145,865.21x = 218,834.76 × 40,684.16
  4. Step 4: Simplify right side
    145,865.21x = 8,903,108,389.40
  5. Step 5: Solve for x
    x = 8,903,108,389.40/145,865.21
  6. Step 6: Final answer
    x = 61,036.54

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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.