Home / 127,528.14-176,116.20-105,089.52

Finding the Fourth Proportional to 127,528.14, 176,116.20 and 105,089.52

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Solution

The fourth proportional to 127,528.14, 176,116.20 and 105,089.52 is: 145,128.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,528.14 : 176,116.20 = 105,089.52 : x
  2. Step 2: Convert to fraction form
    127,528.14/176,116.20 = 105,089.52/x
  3. Step 3: Cross multiply
    127,528.14x = 176,116.20 × 105,089.52
  4. Step 4: Simplify right side
    127,528.14x = 18,507,966,922.22
  5. Step 5: Solve for x
    x = 18,507,966,922.22/127,528.14
  6. Step 6: Final answer
    x = 145,128.49

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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.