Home / 112,459.86-168,719.34-40,420.08

Finding the Fourth Proportional to 112,459.86, 168,719.34 and 40,420.08

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Solution

The fourth proportional to 112,459.86, 168,719.34 and 40,420.08 is: 60,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,459.86 : 168,719.34 = 40,420.08 : x
  2. Step 2: Convert to fraction form
    112,459.86/168,719.34 = 40,420.08/x
  3. Step 3: Cross multiply
    112,459.86x = 168,719.34 × 40,420.08
  4. Step 4: Simplify right side
    112,459.86x = 6,819,649,220.35
  5. Step 5: Solve for x
    x = 6,819,649,220.35/112,459.86
  6. Step 6: Final answer
    x = 60,640.74

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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.