Home / 197,303.91-272,285.51-112,415.50

Finding the Fourth Proportional to 197,303.91, 272,285.51 and 112,415.50

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Solution

The fourth proportional to 197,303.91, 272,285.51 and 112,415.50 is: 155,136.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,303.91 : 272,285.51 = 112,415.50 : x
  2. Step 2: Convert to fraction form
    197,303.91/272,285.51 = 112,415.50/x
  3. Step 3: Cross multiply
    197,303.91x = 272,285.51 × 112,415.50
  4. Step 4: Simplify right side
    197,303.91x = 30,609,111,749.41
  5. Step 5: Solve for x
    x = 30,609,111,749.41/197,303.91
  6. Step 6: Final answer
    x = 155,136.87

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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.