Home / 127,646.51-176,152.12-71,071.25

Finding the Fourth Proportional to 127,646.51, 176,152.12 and 71,071.25

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Solution

The fourth proportional to 127,646.51, 176,152.12 and 71,071.25 is: 98,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,646.51 : 176,152.12 = 71,071.25 : x
  2. Step 2: Convert to fraction form
    127,646.51/176,152.12 = 71,071.25/x
  3. Step 3: Cross multiply
    127,646.51x = 176,152.12 × 71,071.25
  4. Step 4: Simplify right side
    127,646.51x = 12,519,350,300.11
  5. Step 5: Solve for x
    x = 12,519,350,300.11/127,646.51
  6. Step 6: Final answer
    x = 98,078.29

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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.