Home / 207,307.45-286,086.33-115,428.01

Finding the Fourth Proportional to 207,307.45, 286,086.33 and 115,428.01

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Solution

The fourth proportional to 207,307.45, 286,086.33 and 115,428.01 is: 159,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,307.45 : 286,086.33 = 115,428.01 : x
  2. Step 2: Convert to fraction form
    207,307.45/286,086.33 = 115,428.01/x
  3. Step 3: Cross multiply
    207,307.45x = 286,086.33 × 115,428.01
  4. Step 4: Simplify right side
    207,307.45x = 33,022,376,385.92
  5. Step 5: Solve for x
    x = 33,022,376,385.92/207,307.45
  6. Step 6: Final answer
    x = 159,291.80

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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.