Home / 163,234.16-225,264.09-90,638.07

Finding the Fourth Proportional to 163,234.16, 225,264.09 and 90,638.07

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Solution

The fourth proportional to 163,234.16, 225,264.09 and 90,638.07 is: 125,081.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,234.16 : 225,264.09 = 90,638.07 : x
  2. Step 2: Convert to fraction form
    163,234.16/225,264.09 = 90,638.07/x
  3. Step 3: Cross multiply
    163,234.16x = 225,264.09 × 90,638.07
  4. Step 4: Simplify right side
    163,234.16x = 20,417,502,357.91
  5. Step 5: Solve for x
    x = 20,417,502,357.91/163,234.16
  6. Step 6: Final answer
    x = 125,081.07

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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.