Home / 127,528.90-191,300.13-38,775.58

Finding the Fourth Proportional to 127,528.90, 191,300.13 and 38,775.58

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Solution

The fourth proportional to 127,528.90, 191,300.13 and 38,775.58 is: 58,165.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,528.90 : 191,300.13 = 38,775.58 : x
  2. Step 2: Convert to fraction form
    127,528.90/191,300.13 = 38,775.58/x
  3. Step 3: Cross multiply
    127,528.90x = 191,300.13 × 38,775.58
  4. Step 4: Simplify right side
    127,528.90x = 7,417,773,016.58
  5. Step 5: Solve for x
    x = 7,417,773,016.58/127,528.90
  6. Step 6: Final answer
    x = 58,165.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.