Home / 163,235.13-225,264.48-91,615.15

Finding the Fourth Proportional to 163,235.13, 225,264.48 and 91,615.15

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Solution

The fourth proportional to 163,235.13, 225,264.48 and 91,615.15 is: 126,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,235.13 : 225,264.48 = 91,615.15 : x
  2. Step 2: Convert to fraction form
    163,235.13/225,264.48 = 91,615.15/x
  3. Step 3: Cross multiply
    163,235.13x = 225,264.48 × 91,615.15
  4. Step 4: Simplify right side
    163,235.13x = 20,637,638,523.31
  5. Step 5: Solve for x
    x = 20,637,638,523.31/163,235.13
  6. Step 6: Final answer
    x = 126,428.91

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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.