Home / 197,345.80-272,270.64-112,402.72

Finding the Fourth Proportional to 197,345.80, 272,270.64 and 112,402.72

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Solution

The fourth proportional to 197,345.80, 272,270.64 and 112,402.72 is: 155,077.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,345.80 : 272,270.64 = 112,402.72 : x
  2. Step 2: Convert to fraction form
    197,345.80/272,270.64 = 112,402.72/x
  3. Step 3: Cross multiply
    197,345.80x = 272,270.64 × 112,402.72
  4. Step 4: Simplify right side
    197,345.80x = 30,603,960,512.14
  5. Step 5: Solve for x
    x = 30,603,960,512.14/197,345.80
  6. Step 6: Final answer
    x = 155,077.84

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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.