Home / 216,253.26-298,417.14-129,136.67

Finding the Fourth Proportional to 216,253.26, 298,417.14 and 129,136.67

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Solution

The fourth proportional to 216,253.26, 298,417.14 and 129,136.67 is: 178,201.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,253.26 : 298,417.14 = 129,136.67 : x
  2. Step 2: Convert to fraction form
    216,253.26/298,417.14 = 129,136.67/x
  3. Step 3: Cross multiply
    216,253.26x = 298,417.14 × 129,136.67
  4. Step 4: Simplify right side
    216,253.26x = 38,536,597,036.10
  5. Step 5: Solve for x
    x = 38,536,597,036.10/216,253.26
  6. Step 6: Final answer
    x = 178,201.23

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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.