Home / 127,762.12-176,309.40-71,172.28

Finding the Fourth Proportional to 127,762.12, 176,309.40 and 71,172.28

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Solution

The fourth proportional to 127,762.12, 176,309.40 and 71,172.28 is: 98,216.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,762.12 : 176,309.40 = 71,172.28 : x
  2. Step 2: Convert to fraction form
    127,762.12/176,309.40 = 71,172.28/x
  3. Step 3: Cross multiply
    127,762.12x = 176,309.40 × 71,172.28
  4. Step 4: Simplify right side
    127,762.12x = 12,548,341,983.43
  5. Step 5: Solve for x
    x = 12,548,341,983.43/127,762.12
  6. Step 6: Final answer
    x = 98,216.45

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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.