Home / 118,817.12-178,236.64-38,855.51

Finding the Fourth Proportional to 118,817.12, 178,236.64 and 38,855.51

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Solution

The fourth proportional to 118,817.12, 178,236.64 and 38,855.51 is: 58,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,817.12 : 178,236.64 = 38,855.51 : x
  2. Step 2: Convert to fraction form
    118,817.12/178,236.64 = 38,855.51/x
  3. Step 3: Cross multiply
    118,817.12x = 178,236.64 × 38,855.51
  4. Step 4: Simplify right side
    118,817.12x = 6,925,475,547.89
  5. Step 5: Solve for x
    x = 6,925,475,547.89/118,817.12
  6. Step 6: Final answer
    x = 58,286.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.