Home / 113,802.91-170,649.55-66,431.95

Finding the Fourth Proportional to 113,802.91, 170,649.55 and 66,431.95

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Solution

The fourth proportional to 113,802.91, 170,649.55 and 66,431.95 is: 99,615.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,802.91 : 170,649.55 = 66,431.95 : x
  2. Step 2: Convert to fraction form
    113,802.91/170,649.55 = 66,431.95/x
  3. Step 3: Cross multiply
    113,802.91x = 170,649.55 × 66,431.95
  4. Step 4: Simplify right side
    113,802.91x = 11,336,582,373.12
  5. Step 5: Solve for x
    x = 11,336,582,373.12/113,802.91
  6. Step 6: Final answer
    x = 99,615.93

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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.