Home / 197,421.93-272,442.32-111,399.18

Finding the Fourth Proportional to 197,421.93, 272,442.32 and 111,399.18

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Solution

The fourth proportional to 197,421.93, 272,442.32 and 111,399.18 is: 153,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,421.93 : 272,442.32 = 111,399.18 : x
  2. Step 2: Convert to fraction form
    197,421.93/272,442.32 = 111,399.18/x
  3. Step 3: Cross multiply
    197,421.93x = 272,442.32 × 111,399.18
  4. Step 4: Simplify right side
    197,421.93x = 30,349,850,488.30
  5. Step 5: Solve for x
    x = 30,349,850,488.30/197,421.93
  6. Step 6: Final answer
    x = 153,730.90

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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.