Home / 92,888.40-128,196.93-55,162.65

Finding the Fourth Proportional to 92,888.40, 128,196.93 and 55,162.65

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Solution

The fourth proportional to 92,888.40, 128,196.93 and 55,162.65 is: 76,130.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,888.40 : 128,196.93 = 55,162.65 : x
  2. Step 2: Convert to fraction form
    92,888.40/128,196.93 = 55,162.65/x
  3. Step 3: Cross multiply
    92,888.40x = 128,196.93 × 55,162.65
  4. Step 4: Simplify right side
    92,888.40x = 7,071,682,380.66
  5. Step 5: Solve for x
    x = 7,071,682,380.66/92,888.40
  6. Step 6: Final answer
    x = 76,130.95

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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.