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Finding the Fourth Proportional to 127,835.18, 176,413.80 and 70,476.80

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Solution

The fourth proportional to 127,835.18, 176,413.80 and 70,476.80 is: 97,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,835.18 : 176,413.80 = 70,476.80 : x
  2. Step 2: Convert to fraction form
    127,835.18/176,413.80 = 70,476.80/x
  3. Step 3: Cross multiply
    127,835.18x = 176,413.80 × 70,476.80
  4. Step 4: Simplify right side
    127,835.18x = 12,433,079,085.63
  5. Step 5: Solve for x
    x = 12,433,079,085.63/127,835.18
  6. Step 6: Final answer
    x = 97,258.66

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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.