Home / 216,443.72-298,686.60-120,951.20

Finding the Fourth Proportional to 216,443.72, 298,686.60 and 120,951.20

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Solution

The fourth proportional to 216,443.72, 298,686.60 and 120,951.20 is: 166,909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,443.72 : 298,686.60 = 120,951.20 : x
  2. Step 2: Convert to fraction form
    216,443.72/298,686.60 = 120,951.20/x
  3. Step 3: Cross multiply
    216,443.72x = 298,686.60 × 120,951.20
  4. Step 4: Simplify right side
    216,443.72x = 36,126,502,693.92
  5. Step 5: Solve for x
    x = 36,126,502,693.92/216,443.72
  6. Step 6: Final answer
    x = 166,909.45

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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.