Home / 104,334.48-156,151.80-85,613.76

Finding the Fourth Proportional to 104,334.48, 156,151.80 and 85,613.76

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Solution

The fourth proportional to 104,334.48, 156,151.80 and 85,613.76 is: 128,133.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,334.48 : 156,151.80 = 85,613.76 : x
  2. Step 2: Convert to fraction form
    104,334.48/156,151.80 = 85,613.76/x
  3. Step 3: Cross multiply
    104,334.48x = 156,151.80 × 85,613.76
  4. Step 4: Simplify right side
    104,334.48x = 13,368,742,728.77
  5. Step 5: Solve for x
    x = 13,368,742,728.77/104,334.48
  6. Step 6: Final answer
    x = 128,133.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.