Home / 163,397.82-225,513.54-99,772.32

Finding the Fourth Proportional to 163,397.82, 225,513.54 and 99,772.32

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Solution

The fourth proportional to 163,397.82, 225,513.54 and 99,772.32 is: 137,700.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,397.82 : 225,513.54 = 99,772.32 : x
  2. Step 2: Convert to fraction form
    163,397.82/225,513.54 = 99,772.32/x
  3. Step 3: Cross multiply
    163,397.82x = 225,513.54 × 99,772.32
  4. Step 4: Simplify right side
    163,397.82x = 22,500,009,077.21
  5. Step 5: Solve for x
    x = 22,500,009,077.21/163,397.82
  6. Step 6: Final answer
    x = 137,700.79

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1.5x scale

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.