Home / 156,618.64-216,133.86-84,998.65

Finding the Fourth Proportional to 156,618.64, 216,133.86 and 84,998.65

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Solution

The fourth proportional to 156,618.64, 216,133.86 and 84,998.65 is: 117,298.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,618.64 : 216,133.86 = 84,998.65 : x
  2. Step 2: Convert to fraction form
    156,618.64/216,133.86 = 84,998.65/x
  3. Step 3: Cross multiply
    156,618.64x = 216,133.86 × 84,998.65
  4. Step 4: Simplify right side
    156,618.64x = 18,371,086,319.29
  5. Step 5: Solve for x
    x = 18,371,086,319.29/156,618.64
  6. Step 6: Final answer
    x = 117,298.21

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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.