Home / 156,281.08-215,667.36-84,661.02

Finding the Fourth Proportional to 156,281.08, 215,667.36 and 84,661.02

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Solution

The fourth proportional to 156,281.08, 215,667.36 and 84,661.02 is: 116,831.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,281.08 : 215,667.36 = 84,661.02 : x
  2. Step 2: Convert to fraction form
    156,281.08/215,667.36 = 84,661.02/x
  3. Step 3: Cross multiply
    156,281.08x = 215,667.36 × 84,661.02
  4. Step 4: Simplify right side
    156,281.08x = 18,258,618,678.31
  5. Step 5: Solve for x
    x = 18,258,618,678.31/156,281.08
  6. Step 6: Final answer
    x = 116,831.92

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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.