Home / 197,488.16-272,528.40-112,603.28

Finding the Fourth Proportional to 197,488.16, 272,528.40 and 112,603.28

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Solution

The fourth proportional to 197,488.16, 272,528.40 and 112,603.28 is: 155,389.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,488.16 : 272,528.40 = 112,603.28 : x
  2. Step 2: Convert to fraction form
    197,488.16/272,528.40 = 112,603.28/x
  3. Step 3: Cross multiply
    197,488.16x = 272,528.40 × 112,603.28
  4. Step 4: Simplify right side
    197,488.16x = 30,687,591,733.15
  5. Step 5: Solve for x
    x = 30,687,591,733.15/197,488.16
  6. Step 6: Final answer
    x = 155,389.53

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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.