Home / 127,531.15-191,303.51-38,777.83

Finding the Fourth Proportional to 127,531.15, 191,303.51 and 38,777.83

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Solution

The fourth proportional to 127,531.15, 191,303.51 and 38,777.83 is: 58,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,531.15 : 191,303.51 = 38,777.83 : x
  2. Step 2: Convert to fraction form
    127,531.15/191,303.51 = 38,777.83/x
  3. Step 3: Cross multiply
    127,531.15x = 191,303.51 × 38,777.83
  4. Step 4: Simplify right side
    127,531.15x = 7,418,334,317.04
  5. Step 5: Solve for x
    x = 7,418,334,317.04/127,531.15
  6. Step 6: Final answer
    x = 58,168.80

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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.