Home / 153,217.23-229,536.08-86,705.10

Finding the Fourth Proportional to 153,217.23, 229,536.08 and 86,705.10

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Solution

The fourth proportional to 153,217.23, 229,536.08 and 86,705.10 is: 129,893.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,217.23 : 229,536.08 = 86,705.10 : x
  2. Step 2: Convert to fraction form
    153,217.23/229,536.08 = 86,705.10/x
  3. Step 3: Cross multiply
    153,217.23x = 229,536.08 × 86,705.10
  4. Step 4: Simplify right side
    153,217.23x = 19,901,948,336.48
  5. Step 5: Solve for x
    x = 19,901,948,336.48/153,217.23
  6. Step 6: Final answer
    x = 129,893.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.