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Finding the Fourth Proportional to 152,820.08, 210,904.20 and 84,841.20

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Solution

The fourth proportional to 152,820.08, 210,904.20 and 84,841.20 is: 117,087.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,820.08 : 210,904.20 = 84,841.20 : x
  2. Step 2: Convert to fraction form
    152,820.08/210,904.20 = 84,841.20/x
  3. Step 3: Cross multiply
    152,820.08x = 210,904.20 × 84,841.20
  4. Step 4: Simplify right side
    152,820.08x = 17,893,365,413.04
  5. Step 5: Solve for x
    x = 17,893,365,413.04/152,820.08
  6. Step 6: Final answer
    x = 117,087.79

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1.5x scale

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.