Home / 197,407.72-272,368.74-112,493.80

Finding the Fourth Proportional to 197,407.72, 272,368.74 and 112,493.80

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Solution

The fourth proportional to 197,407.72, 272,368.74 and 112,493.80 is: 155,210.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,407.72 : 272,368.74 = 112,493.80 : x
  2. Step 2: Convert to fraction form
    197,407.72/272,368.74 = 112,493.80/x
  3. Step 3: Cross multiply
    197,407.72x = 272,368.74 × 112,493.80
  4. Step 4: Simplify right side
    197,407.72x = 30,639,794,563.81
  5. Step 5: Solve for x
    x = 30,639,794,563.81/197,407.72
  6. Step 6: Final answer
    x = 155,210.72

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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.