Home / 127,643.90-176,147.09-70,282.03

Finding the Fourth Proportional to 127,643.90, 176,147.09 and 70,282.03

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Solution

The fourth proportional to 127,643.90, 176,147.09 and 70,282.03 is: 96,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,643.90 : 176,147.09 = 70,282.03 : x
  2. Step 2: Convert to fraction form
    127,643.90/176,147.09 = 70,282.03/x
  3. Step 3: Cross multiply
    127,643.90x = 176,147.09 × 70,282.03
  4. Step 4: Simplify right side
    127,643.90x = 12,379,975,063.79
  5. Step 5: Solve for x
    x = 12,379,975,063.79/127,643.90
  6. Step 6: Final answer
    x = 96,988.38

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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.