Home / 208,273.59-312,345.81-75,136.55

Finding the Fourth Proportional to 208,273.59, 312,345.81 and 75,136.55

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Solution

The fourth proportional to 208,273.59, 312,345.81 and 75,136.55 is: 112,681.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,273.59 : 312,345.81 = 75,136.55 : x
  2. Step 2: Convert to fraction form
    208,273.59/312,345.81 = 75,136.55/x
  3. Step 3: Cross multiply
    208,273.59x = 312,345.81 × 75,136.55
  4. Step 4: Simplify right side
    208,273.59x = 23,468,586,570.36
  5. Step 5: Solve for x
    x = 23,468,586,570.36/208,273.59
  6. Step 6: Final answer
    x = 112,681.53

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1.5x scale

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.