Home / 163,130.90-225,119.25-91,509.35

Finding the Fourth Proportional to 163,130.90, 225,119.25 and 91,509.35

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Solution

The fourth proportional to 163,130.90, 225,119.25 and 91,509.35 is: 126,282.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,130.90 : 225,119.25 = 91,509.35 : x
  2. Step 2: Convert to fraction form
    163,130.90/225,119.25 = 91,509.35/x
  3. Step 3: Cross multiply
    163,130.90x = 225,119.25 × 91,509.35
  4. Step 4: Simplify right side
    163,130.90x = 20,600,515,114.39
  5. Step 5: Solve for x
    x = 20,600,515,114.39/163,130.90
  6. Step 6: Final answer
    x = 126,282.12

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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.