Home / 137,729.16-190,178.28-112,239.27

Finding the Fourth Proportional to 137,729.16, 190,178.28 and 112,239.27

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Solution

The fourth proportional to 137,729.16, 190,178.28 and 112,239.27 is: 154,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,729.16 : 190,178.28 = 112,239.27 : x
  2. Step 2: Convert to fraction form
    137,729.16/190,178.28 = 112,239.27/x
  3. Step 3: Cross multiply
    137,729.16x = 190,178.28 × 112,239.27
  4. Step 4: Simplify right side
    137,729.16x = 21,345,471,317.06
  5. Step 5: Solve for x
    x = 21,345,471,317.06/137,729.16
  6. Step 6: Final answer
    x = 154,981.50

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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.