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Finding the Fourth Proportional to 152,903.18, 210,999.20 and 84,924.56

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Solution

The fourth proportional to 152,903.18, 210,999.20 and 84,924.56 is: 117,191.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,903.18 : 210,999.20 = 84,924.56 : x
  2. Step 2: Convert to fraction form
    152,903.18/210,999.20 = 84,924.56/x
  3. Step 3: Cross multiply
    152,903.18x = 210,999.20 × 84,924.56
  4. Step 4: Simplify right side
    152,903.18x = 17,919,014,220.35
  5. Step 5: Solve for x
    x = 17,919,014,220.35/152,903.18
  6. Step 6: Final answer
    x = 117,191.90

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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.