Home / 154,290.96-212,911.52-86,296.16

Finding the Fourth Proportional to 154,290.96, 212,911.52 and 86,296.16

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Solution

The fourth proportional to 154,290.96, 212,911.52 and 86,296.16 is: 119,083.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,290.96 : 212,911.52 = 86,296.16 : x
  2. Step 2: Convert to fraction form
    154,290.96/212,911.52 = 86,296.16/x
  3. Step 3: Cross multiply
    154,290.96x = 212,911.52 × 86,296.16
  4. Step 4: Simplify right side
    154,290.96x = 18,373,446,595.76
  5. Step 5: Solve for x
    x = 18,373,446,595.76/154,290.96
  6. Step 6: Final answer
    x = 119,083.11

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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.