Home / 156,281.19-215,669.04-84,661.17

Finding the Fourth Proportional to 156,281.19, 215,669.04 and 84,661.17

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Solution

The fourth proportional to 156,281.19, 215,669.04 and 84,661.17 is: 116,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,281.19 : 215,669.04 = 84,661.17 : x
  2. Step 2: Convert to fraction form
    156,281.19/215,669.04 = 84,661.17/x
  3. Step 3: Cross multiply
    156,281.19x = 215,669.04 × 84,661.17
  4. Step 4: Simplify right side
    156,281.19x = 18,258,793,259.18
  5. Step 5: Solve for x
    x = 18,258,793,259.18/156,281.19
  6. Step 6: Final answer
    x = 116,832.96

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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.