Home / 209,031.84-288,368.64-124,100.64

Finding the Fourth Proportional to 209,031.84, 288,368.64 and 124,100.64

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Solution

The fourth proportional to 209,031.84, 288,368.64 and 124,100.64 is: 171,202.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,031.84 : 288,368.64 = 124,100.64 : x
  2. Step 2: Convert to fraction form
    209,031.84/288,368.64 = 124,100.64/x
  3. Step 3: Cross multiply
    209,031.84x = 288,368.64 × 124,100.64
  4. Step 4: Simplify right side
    209,031.84x = 35,786,732,779.93
  5. Step 5: Solve for x
    x = 35,786,732,779.93/209,031.84
  6. Step 6: Final answer
    x = 171,202.30

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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.