Home / 121,321.50-167,403.98-70,324.28

Finding the Fourth Proportional to 121,321.50, 167,403.98 and 70,324.28

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Solution

The fourth proportional to 121,321.50, 167,403.98 and 70,324.28 is: 97,036.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,321.50 : 167,403.98 = 70,324.28 : x
  2. Step 2: Convert to fraction form
    121,321.50/167,403.98 = 70,324.28/x
  3. Step 3: Cross multiply
    121,321.50x = 167,403.98 × 70,324.28
  4. Step 4: Simplify right side
    121,321.50x = 11,772,563,801.76
  5. Step 5: Solve for x
    x = 11,772,563,801.76/121,321.50
  6. Step 6: Final answer
    x = 97,036.09

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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.