Home / 127,647.51-176,153.50-71,072.25

Finding the Fourth Proportional to 127,647.51, 176,153.50 and 71,072.25

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Solution

The fourth proportional to 127,647.51, 176,153.50 and 71,072.25 is: 98,079.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,647.51 : 176,153.50 = 71,072.25 : x
  2. Step 2: Convert to fraction form
    127,647.51/176,153.50 = 71,072.25/x
  3. Step 3: Cross multiply
    127,647.51x = 176,153.50 × 71,072.25
  4. Step 4: Simplify right side
    127,647.51x = 12,519,625,590.38
  5. Step 5: Solve for x
    x = 12,519,625,590.38/127,647.51
  6. Step 6: Final answer
    x = 98,079.67

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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.