Home / 121,525.03-167,739.74-70,549.21

Finding the Fourth Proportional to 121,525.03, 167,739.74 and 70,549.21

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Solution

The fourth proportional to 121,525.03, 167,739.74 and 70,549.21 is: 97,378.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,525.03 : 167,739.74 = 70,549.21 : x
  2. Step 2: Convert to fraction form
    121,525.03/167,739.74 = 70,549.21/x
  3. Step 3: Cross multiply
    121,525.03x = 167,739.74 × 70,549.21
  4. Step 4: Simplify right side
    121,525.03x = 11,833,906,142.61
  5. Step 5: Solve for x
    x = 11,833,906,142.61/121,525.03
  6. Step 6: Final answer
    x = 97,378.34

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1.5x scale

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.