Home / 156,435.49-215,865-96,008.68

Finding the Fourth Proportional to 156,435.49, 215,865 and 96,008.68

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Solution

The fourth proportional to 156,435.49, 215,865 and 96,008.68 is: 132,482.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,435.49 : 215,865 = 96,008.68 : x
  2. Step 2: Convert to fraction form
    156,435.49/215,865 = 96,008.68/x
  3. Step 3: Cross multiply
    156,435.49x = 215,865 × 96,008.68
  4. Step 4: Simplify right side
    156,435.49x = 20,724,913,708.20
  5. Step 5: Solve for x
    x = 20,724,913,708.20/156,435.49
  6. Step 6: Final answer
    x = 132,482.17

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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.