Home / 127,437.52-191,036.88-43,138.68

Finding the Fourth Proportional to 127,437.52, 191,036.88 and 43,138.68

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Solution

The fourth proportional to 127,437.52, 191,036.88 and 43,138.68 is: 64,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,437.52 : 191,036.88 = 43,138.68 : x
  2. Step 2: Convert to fraction form
    127,437.52/191,036.88 = 43,138.68/x
  3. Step 3: Cross multiply
    127,437.52x = 191,036.88 × 43,138.68
  4. Step 4: Simplify right side
    127,437.52x = 8,241,078,834.52
  5. Step 5: Solve for x
    x = 8,241,078,834.52/127,437.52
  6. Step 6: Final answer
    x = 64,667.60

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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.