Home / 128,925.74-193,389.59-48,942.16

Finding the Fourth Proportional to 128,925.74, 193,389.59 and 48,942.16

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Solution

The fourth proportional to 128,925.74, 193,389.59 and 48,942.16 is: 73,413.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,925.74 : 193,389.59 = 48,942.16 : x
  2. Step 2: Convert to fraction form
    128,925.74/193,389.59 = 48,942.16/x
  3. Step 3: Cross multiply
    128,925.74x = 193,389.59 × 48,942.16
  4. Step 4: Simplify right side
    128,925.74x = 9,464,903,895.00
  5. Step 5: Solve for x
    x = 9,464,903,895.00/128,925.74
  6. Step 6: Final answer
    x = 73,413.61

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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.