Home / 127,012.80-190,509.46-47,013.21

Finding the Fourth Proportional to 127,012.80, 190,509.46 and 47,013.21

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Solution

The fourth proportional to 127,012.80, 190,509.46 and 47,013.21 is: 70,516.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,012.80 : 190,509.46 = 47,013.21 : x
  2. Step 2: Convert to fraction form
    127,012.80/190,509.46 = 47,013.21/x
  3. Step 3: Cross multiply
    127,012.80x = 190,509.46 × 47,013.21
  4. Step 4: Simplify right side
    127,012.80x = 8,956,461,066.32
  5. Step 5: Solve for x
    x = 8,956,461,066.32/127,012.80
  6. Step 6: Final answer
    x = 70,516.21

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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.