Home / 155,277.69-214,256.46-87,285.24

Finding the Fourth Proportional to 155,277.69, 214,256.46 and 87,285.24

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Solution

The fourth proportional to 155,277.69, 214,256.46 and 87,285.24 is: 120,438.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,277.69 : 214,256.46 = 87,285.24 : x
  2. Step 2: Convert to fraction form
    155,277.69/214,256.46 = 87,285.24/x
  3. Step 3: Cross multiply
    155,277.69x = 214,256.46 × 87,285.24
  4. Step 4: Simplify right side
    155,277.69x = 18,701,426,532.65
  5. Step 5: Solve for x
    x = 18,701,426,532.65/155,277.69
  6. Step 6: Final answer
    x = 120,438.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.