Home / 207,622.31-286,518.78-112,129.02

Finding the Fourth Proportional to 207,622.31, 286,518.78 and 112,129.02

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Solution

The fourth proportional to 207,622.31, 286,518.78 and 112,129.02 is: 154,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,622.31 : 286,518.78 = 112,129.02 : x
  2. Step 2: Convert to fraction form
    207,622.31/286,518.78 = 112,129.02/x
  3. Step 3: Cross multiply
    207,622.31x = 286,518.78 × 112,129.02
  4. Step 4: Simplify right side
    207,622.31x = 32,127,070,013.00
  5. Step 5: Solve for x
    x = 32,127,070,013.00/207,622.31
  6. Step 6: Final answer
    x = 154,738.05

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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.