Home / 171,639.90-257,751.45-127,316.70

Finding the Fourth Proportional to 171,639.90, 257,751.45 and 127,316.70

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Solution

The fourth proportional to 171,639.90, 257,751.45 and 127,316.70 is: 191,191.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,639.90 : 257,751.45 = 127,316.70 : x
  2. Step 2: Convert to fraction form
    171,639.90/257,751.45 = 127,316.70/x
  3. Step 3: Cross multiply
    171,639.90x = 257,751.45 × 127,316.70
  4. Step 4: Simplify right side
    171,639.90x = 32,816,064,034.22
  5. Step 5: Solve for x
    x = 32,816,064,034.22/171,639.90
  6. Step 6: Final answer
    x = 191,191.35

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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.