Home / 113,108.54-156,162.81-70,133.66

Finding the Fourth Proportional to 113,108.54, 156,162.81 and 70,133.66

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Solution

The fourth proportional to 113,108.54, 156,162.81 and 70,133.66 is: 96,829.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,108.54 : 156,162.81 = 70,133.66 : x
  2. Step 2: Convert to fraction form
    113,108.54/156,162.81 = 70,133.66/x
  3. Step 3: Cross multiply
    113,108.54x = 156,162.81 × 70,133.66
  4. Step 4: Simplify right side
    113,108.54x = 10,952,269,421.18
  5. Step 5: Solve for x
    x = 10,952,269,421.18/113,108.54
  6. Step 6: Final answer
    x = 96,829.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.