Home / 126,715.05-190,011.08-47,835.50

Finding the Fourth Proportional to 126,715.05, 190,011.08 and 47,835.50

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Solution

The fourth proportional to 126,715.05, 190,011.08 and 47,835.50 is: 71,730.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,715.05 : 190,011.08 = 47,835.50 : x
  2. Step 2: Convert to fraction form
    126,715.05/190,011.08 = 47,835.50/x
  3. Step 3: Cross multiply
    126,715.05x = 190,011.08 × 47,835.50
  4. Step 4: Simplify right side
    126,715.05x = 9,089,274,186.87
  5. Step 5: Solve for x
    x = 9,089,274,186.87/126,715.05
  6. Step 6: Final answer
    x = 71,730.03

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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.