Home / 197,139.12-272,051.71-112,256.18

Finding the Fourth Proportional to 197,139.12, 272,051.71 and 112,256.18

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Solution

The fourth proportional to 197,139.12, 272,051.71 and 112,256.18 is: 154,913.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,139.12 : 272,051.71 = 112,256.18 : x
  2. Step 2: Convert to fraction form
    197,139.12/272,051.71 = 112,256.18/x
  3. Step 3: Cross multiply
    197,139.12x = 272,051.71 × 112,256.18
  4. Step 4: Simplify right side
    197,139.12x = 30,539,485,737.80
  5. Step 5: Solve for x
    x = 30,539,485,737.80/197,139.12
  6. Step 6: Final answer
    x = 154,913.37

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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.