Home / 121,516.35-167,707.71-70,518.13

Finding the Fourth Proportional to 121,516.35, 167,707.71 and 70,518.13

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Solution

The fourth proportional to 121,516.35, 167,707.71 and 70,518.13 is: 97,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,516.35 : 167,707.71 = 70,518.13 : x
  2. Step 2: Convert to fraction form
    121,516.35/167,707.71 = 70,518.13/x
  3. Step 3: Cross multiply
    121,516.35x = 167,707.71 × 70,518.13
  4. Step 4: Simplify right side
    121,516.35x = 11,826,433,500.22
  5. Step 5: Solve for x
    x = 11,826,433,500.22/121,516.35
  6. Step 6: Final answer
    x = 97,323.80

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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.