Home / 216,123.60-298,287.04-135,618.24

Finding the Fourth Proportional to 216,123.60, 298,287.04 and 135,618.24

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Solution

The fourth proportional to 216,123.60, 298,287.04 and 135,618.24 is: 187,176.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,123.60 : 298,287.04 = 135,618.24 : x
  2. Step 2: Convert to fraction form
    216,123.60/298,287.04 = 135,618.24/x
  3. Step 3: Cross multiply
    216,123.60x = 298,287.04 × 135,618.24
  4. Step 4: Simplify right side
    216,123.60x = 40,453,163,379.61
  5. Step 5: Solve for x
    x = 40,453,163,379.61/216,123.60
  6. Step 6: Final answer
    x = 187,176.06

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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.