Home / 156,085.79-215,398.69-84,465.83

Finding the Fourth Proportional to 156,085.79, 215,398.69 and 84,465.83

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Solution

The fourth proportional to 156,085.79, 215,398.69 and 84,465.83 is: 116,563.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,085.79 : 215,398.69 = 84,465.83 : x
  2. Step 2: Convert to fraction form
    156,085.79/215,398.69 = 84,465.83/x
  3. Step 3: Cross multiply
    156,085.79x = 215,398.69 × 84,465.83
  4. Step 4: Simplify right side
    156,085.79x = 18,193,829,459.09
  5. Step 5: Solve for x
    x = 18,193,829,459.09/156,085.79
  6. Step 6: Final answer
    x = 116,563.01

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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.