Home / 207,914.48-286,921.92-112,421.20

Finding the Fourth Proportional to 207,914.48, 286,921.92 and 112,421.20

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Solution

The fourth proportional to 207,914.48, 286,921.92 and 112,421.20 is: 155,141.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,914.48 : 286,921.92 = 112,421.20 : x
  2. Step 2: Convert to fraction form
    207,914.48/286,921.92 = 112,421.20/x
  3. Step 3: Cross multiply
    207,914.48x = 286,921.92 × 112,421.20
  4. Step 4: Simplify right side
    207,914.48x = 32,256,106,552.70
  5. Step 5: Solve for x
    x = 32,256,106,552.70/207,914.48
  6. Step 6: Final answer
    x = 155,141.22

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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.