Home / 156,600.32-216,109.01-84,980.34

Finding the Fourth Proportional to 156,600.32, 216,109.01 and 84,980.34

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Solution

The fourth proportional to 156,600.32, 216,109.01 and 84,980.34 is: 117,273.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,600.32 : 216,109.01 = 84,980.34 : x
  2. Step 2: Convert to fraction form
    156,600.32/216,109.01 = 84,980.34/x
  3. Step 3: Cross multiply
    156,600.32x = 216,109.01 × 84,980.34
  4. Step 4: Simplify right side
    156,600.32x = 18,365,017,359.31
  5. Step 5: Solve for x
    x = 18,365,017,359.31/156,600.32
  6. Step 6: Final answer
    x = 117,273.18

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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.