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Finding the Fourth Proportional to 156,602.34, 216,111.79 and 84,982.34

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Solution

The fourth proportional to 156,602.34, 216,111.79 and 84,982.34 is: 117,275.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,602.34 : 216,111.79 = 84,982.34 : x
  2. Step 2: Convert to fraction form
    156,602.34/216,111.79 = 84,982.34/x
  3. Step 3: Cross multiply
    156,602.34x = 216,111.79 × 84,982.34
  4. Step 4: Simplify right side
    156,602.34x = 18,365,684,863.05
  5. Step 5: Solve for x
    x = 18,365,684,863.05/156,602.34
  6. Step 6: Final answer
    x = 117,275.93

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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.