Home / 181,280.12-250,166.34-100,715.08

Finding the Fourth Proportional to 181,280.12, 250,166.34 and 100,715.08

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Solution

The fourth proportional to 181,280.12, 250,166.34 and 100,715.08 is: 138,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,280.12 : 250,166.34 = 100,715.08 : x
  2. Step 2: Convert to fraction form
    181,280.12/250,166.34 = 100,715.08/x
  3. Step 3: Cross multiply
    181,280.12x = 250,166.34 × 100,715.08
  4. Step 4: Simplify right side
    181,280.12x = 25,195,522,946.41
  5. Step 5: Solve for x
    x = 25,195,522,946.41/181,280.12
  6. Step 6: Final answer
    x = 138,986.69

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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.