Home / 111,787.48-167,681.58-70,147

Finding the Fourth Proportional to 111,787.48, 167,681.58 and 70,147

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Solution

The fourth proportional to 111,787.48, 167,681.58 and 70,147 is: 105,220.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,787.48 : 167,681.58 = 70,147 : x
  2. Step 2: Convert to fraction form
    111,787.48/167,681.58 = 70,147/x
  3. Step 3: Cross multiply
    111,787.48x = 167,681.58 × 70,147
  4. Step 4: Simplify right side
    111,787.48x = 11,762,359,792.26
  5. Step 5: Solve for x
    x = 11,762,359,792.26/111,787.48
  6. Step 6: Final answer
    x = 105,220.73

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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.