Home / 121,459.21-167,526.91-105,297.60

Finding the Fourth Proportional to 121,459.21, 167,526.91 and 105,297.60

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Solution

The fourth proportional to 121,459.21, 167,526.91 and 105,297.60 is: 145,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,459.21 : 167,526.91 = 105,297.60 : x
  2. Step 2: Convert to fraction form
    121,459.21/167,526.91 = 105,297.60/x
  3. Step 3: Cross multiply
    121,459.21x = 167,526.91 × 105,297.60
  4. Step 4: Simplify right side
    121,459.21x = 17,640,182,318.26
  5. Step 5: Solve for x
    x = 17,640,182,318.26/121,459.21
  6. Step 6: Final answer
    x = 145,235.45

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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.