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Finding the Fourth Proportional to 102,117.40, 153,003.30 and 49,413.40

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Solution

The fourth proportional to 102,117.40, 153,003.30 and 49,413.40 is: 74,036.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,117.40 : 153,003.30 = 49,413.40 : x
  2. Step 2: Convert to fraction form
    102,117.40/153,003.30 = 49,413.40/x
  3. Step 3: Cross multiply
    102,117.40x = 153,003.30 × 49,413.40
  4. Step 4: Simplify right side
    102,117.40x = 7,560,413,264.22
  5. Step 5: Solve for x
    x = 7,560,413,264.22/102,117.40
  6. Step 6: Final answer
    x = 74,036.48

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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.