Home / 156,026.64-215,316.57-84,406.50

Finding the Fourth Proportional to 156,026.64, 215,316.57 and 84,406.50

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Solution

The fourth proportional to 156,026.64, 215,316.57 and 84,406.50 is: 116,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,026.64 : 215,316.57 = 84,406.50 : x
  2. Step 2: Convert to fraction form
    156,026.64/215,316.57 = 84,406.50/x
  3. Step 3: Cross multiply
    156,026.64x = 215,316.57 × 84,406.50
  4. Step 4: Simplify right side
    156,026.64x = 18,174,118,065.71
  5. Step 5: Solve for x
    x = 18,174,118,065.71/156,026.64
  6. Step 6: Final answer
    x = 116,480.87

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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.