Home / 216,743.40-299,115.05-133,975.78

Finding the Fourth Proportional to 216,743.40, 299,115.05 and 133,975.78

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Solution

The fourth proportional to 216,743.40, 299,115.05 and 133,975.78 is: 184,892.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,743.40 : 299,115.05 = 133,975.78 : x
  2. Step 2: Convert to fraction form
    216,743.40/299,115.05 = 133,975.78/x
  3. Step 3: Cross multiply
    216,743.40x = 299,115.05 × 133,975.78
  4. Step 4: Simplify right side
    216,743.40x = 40,074,170,715.82
  5. Step 5: Solve for x
    x = 40,074,170,715.82/216,743.40
  6. Step 6: Final answer
    x = 184,892.23

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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.