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Finding the Fourth Proportional to 158,501.61, 218,754.63 and 98,091.72

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Solution

The fourth proportional to 158,501.61, 218,754.63 and 98,091.72 is: 135,380.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,501.61 : 218,754.63 = 98,091.72 : x
  2. Step 2: Convert to fraction form
    158,501.61/218,754.63 = 98,091.72/x
  3. Step 3: Cross multiply
    158,501.61x = 218,754.63 × 98,091.72
  4. Step 4: Simplify right side
    158,501.61x = 21,458,017,914.66
  5. Step 5: Solve for x
    x = 21,458,017,914.66/158,501.61
  6. Step 6: Final answer
    x = 135,380.44

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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.