Home / 197,338.80-272,260.98-112,395.72

Finding the Fourth Proportional to 197,338.80, 272,260.98 and 112,395.72

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Solution

The fourth proportional to 197,338.80, 272,260.98 and 112,395.72 is: 155,068.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,338.80 : 272,260.98 = 112,395.72 : x
  2. Step 2: Convert to fraction form
    197,338.80/272,260.98 = 112,395.72/x
  3. Step 3: Cross multiply
    197,338.80x = 272,260.98 × 112,395.72
  4. Step 4: Simplify right side
    197,338.80x = 30,600,968,875.01
  5. Step 5: Solve for x
    x = 30,600,968,875.01/197,338.80
  6. Step 6: Final answer
    x = 155,068.18

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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.