Home / 197,685.81-272,825.96-112,815.63

Finding the Fourth Proportional to 197,685.81, 272,825.96 and 112,815.63

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Solution

The fourth proportional to 197,685.81, 272,825.96 and 112,815.63 is: 155,696.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,685.81 : 272,825.96 = 112,815.63 : x
  2. Step 2: Convert to fraction form
    197,685.81/272,825.96 = 112,815.63/x
  3. Step 3: Cross multiply
    197,685.81x = 272,825.96 × 112,815.63
  4. Step 4: Simplify right side
    197,685.81x = 30,779,031,993.68
  5. Step 5: Solve for x
    x = 30,779,031,993.68/197,685.81
  6. Step 6: Final answer
    x = 155,696.72

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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.