Home / 127,349.12-191,012.67-43,107.48

Finding the Fourth Proportional to 127,349.12, 191,012.67 and 43,107.48

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Solution

The fourth proportional to 127,349.12, 191,012.67 and 43,107.48 is: 64,657.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,349.12 : 191,012.67 = 43,107.48 : x
  2. Step 2: Convert to fraction form
    127,349.12/191,012.67 = 43,107.48/x
  3. Step 3: Cross multiply
    127,349.12x = 191,012.67 × 43,107.48
  4. Step 4: Simplify right side
    127,349.12x = 8,234,074,851.77
  5. Step 5: Solve for x
    x = 8,234,074,851.77/127,349.12
  6. Step 6: Final answer
    x = 64,657.50

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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.