Home / 153,966.72-212,394.24-133,779.36

Finding the Fourth Proportional to 153,966.72, 212,394.24 and 133,779.36

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Solution

The fourth proportional to 153,966.72, 212,394.24 and 133,779.36 is: 184,546.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,966.72 : 212,394.24 = 133,779.36 : x
  2. Step 2: Convert to fraction form
    153,966.72/212,394.24 = 133,779.36/x
  3. Step 3: Cross multiply
    153,966.72x = 212,394.24 × 133,779.36
  4. Step 4: Simplify right side
    153,966.72x = 28,413,965,494.89
  5. Step 5: Solve for x
    x = 28,413,965,494.89/153,966.72
  6. Step 6: Final answer
    x = 184,546.15

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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.