Home / 121,337.60-167,549.28-76,091.68

Finding the Fourth Proportional to 121,337.60, 167,549.28 and 76,091.68

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Solution

The fourth proportional to 121,337.60, 167,549.28 and 76,091.68 is: 105,071.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,337.60 : 167,549.28 = 76,091.68 : x
  2. Step 2: Convert to fraction form
    121,337.60/167,549.28 = 76,091.68/x
  3. Step 3: Cross multiply
    121,337.60x = 167,549.28 × 76,091.68
  4. Step 4: Simplify right side
    121,337.60x = 12,749,106,197.99
  5. Step 5: Solve for x
    x = 12,749,106,197.99/121,337.60
  6. Step 6: Final answer
    x = 105,071.36

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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.