Home / 121,516.85-167,708.40-70,518.63

Finding the Fourth Proportional to 121,516.85, 167,708.40 and 70,518.63

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Solution

The fourth proportional to 121,516.85, 167,708.40 and 70,518.63 is: 97,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,516.85 : 167,708.40 = 70,518.63 : x
  2. Step 2: Convert to fraction form
    121,516.85/167,708.40 = 70,518.63/x
  3. Step 3: Cross multiply
    121,516.85x = 167,708.40 × 70,518.63
  4. Step 4: Simplify right side
    121,516.85x = 11,826,566,607.49
  5. Step 5: Solve for x
    x = 11,826,566,607.49/121,516.85
  6. Step 6: Final answer
    x = 97,324.50

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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.