Home / 127,985.06-176,618.85-71,396.48

Finding the Fourth Proportional to 127,985.06, 176,618.85 and 71,396.48

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Solution

The fourth proportional to 127,985.06, 176,618.85 and 71,396.48 is: 98,526.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,985.06 : 176,618.85 = 71,396.48 : x
  2. Step 2: Convert to fraction form
    127,985.06/176,618.85 = 71,396.48/x
  3. Step 3: Cross multiply
    127,985.06x = 176,618.85 × 71,396.48
  4. Step 4: Simplify right side
    127,985.06x = 12,609,964,191.65
  5. Step 5: Solve for x
    x = 12,609,964,191.65/127,985.06
  6. Step 6: Final answer
    x = 98,526.85

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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.