Home / 145,865.20-218,834.70-40,684.16

Finding the Fourth Proportional to 145,865.20, 218,834.70 and 40,684.16

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Solution

The fourth proportional to 145,865.20, 218,834.70 and 40,684.16 is: 61,036.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,865.20 : 218,834.70 = 40,684.16 : x
  2. Step 2: Convert to fraction form
    145,865.20/218,834.70 = 40,684.16/x
  3. Step 3: Cross multiply
    145,865.20x = 218,834.70 × 40,684.16
  4. Step 4: Simplify right side
    145,865.20x = 8,903,105,948.35
  5. Step 5: Solve for x
    x = 8,903,105,948.35/145,865.20
  6. Step 6: Final answer
    x = 61,036.53

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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.