Home / 121,327.50-167,412.26-70,330.28

Finding the Fourth Proportional to 121,327.50, 167,412.26 and 70,330.28

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Solution

The fourth proportional to 121,327.50, 167,412.26 and 70,330.28 is: 97,044.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,327.50 : 167,412.26 = 70,330.28 : x
  2. Step 2: Convert to fraction form
    121,327.50/167,412.26 = 70,330.28/x
  3. Step 3: Cross multiply
    121,327.50x = 167,412.26 × 70,330.28
  4. Step 4: Simplify right side
    121,327.50x = 11,774,151,121.23
  5. Step 5: Solve for x
    x = 11,774,151,121.23/121,327.50
  6. Step 6: Final answer
    x = 97,044.37

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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.