Home / 199,711.39-275,603.59-113,666.15

Finding the Fourth Proportional to 199,711.39, 275,603.59 and 113,666.15

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Solution

The fourth proportional to 199,711.39, 275,603.59 and 113,666.15 is: 156,860.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,711.39 : 275,603.59 = 113,666.15 : x
  2. Step 2: Convert to fraction form
    199,711.39/275,603.59 = 113,666.15/x
  3. Step 3: Cross multiply
    199,711.39x = 275,603.59 × 113,666.15
  4. Step 4: Simplify right side
    199,711.39x = 31,326,799,001.48
  5. Step 5: Solve for x
    x = 31,326,799,001.48/199,711.39
  6. Step 6: Final answer
    x = 156,860.35

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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.