Home / 118,226.81-163,106.13-72,826.06

Finding the Fourth Proportional to 118,226.81, 163,106.13 and 72,826.06

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Solution

The fourth proportional to 118,226.81, 163,106.13 and 72,826.06 is: 100,471.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,226.81 : 163,106.13 = 72,826.06 : x
  2. Step 2: Convert to fraction form
    118,226.81/163,106.13 = 72,826.06/x
  3. Step 3: Cross multiply
    118,226.81x = 163,106.13 × 72,826.06
  4. Step 4: Simplify right side
    118,226.81x = 11,878,376,809.75
  5. Step 5: Solve for x
    x = 11,878,376,809.75/118,226.81
  6. Step 6: Final answer
    x = 100,471.09

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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.