Home / 135,547.50-187,047.06-75,114.60

Finding the Fourth Proportional to 135,547.50, 187,047.06 and 75,114.60

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Solution

The fourth proportional to 135,547.50, 187,047.06 and 75,114.60 is: 103,653.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,547.50 : 187,047.06 = 75,114.60 : x
  2. Step 2: Convert to fraction form
    135,547.50/187,047.06 = 75,114.60/x
  3. Step 3: Cross multiply
    135,547.50x = 187,047.06 × 75,114.60
  4. Step 4: Simplify right side
    135,547.50x = 14,049,965,093.08
  5. Step 5: Solve for x
    x = 14,049,965,093.08/135,547.50
  6. Step 6: Final answer
    x = 103,653.44

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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.