Home / 97,779.48-146,645.73-45,138.39

Finding the Fourth Proportional to 97,779.48, 146,645.73 and 45,138.39

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Solution

The fourth proportional to 97,779.48, 146,645.73 and 45,138.39 is: 67,696.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,779.48 : 146,645.73 = 45,138.39 : x
  2. Step 2: Convert to fraction form
    97,779.48/146,645.73 = 45,138.39/x
  3. Step 3: Cross multiply
    97,779.48x = 146,645.73 × 45,138.39
  4. Step 4: Simplify right side
    97,779.48x = 6,619,352,152.57
  5. Step 5: Solve for x
    x = 6,619,352,152.57/97,779.48
  6. Step 6: Final answer
    x = 67,696.74

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1.5x scale

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.