Home / 163,935.28-226,247.75-100,315.45

Finding the Fourth Proportional to 163,935.28, 226,247.75 and 100,315.45

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Solution

The fourth proportional to 163,935.28, 226,247.75 and 100,315.45 is: 138,445.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,935.28 : 226,247.75 = 100,315.45 : x
  2. Step 2: Convert to fraction form
    163,935.28/226,247.75 = 100,315.45/x
  3. Step 3: Cross multiply
    163,935.28x = 226,247.75 × 100,315.45
  4. Step 4: Simplify right side
    163,935.28x = 22,696,144,852.74
  5. Step 5: Solve for x
    x = 22,696,144,852.74/163,935.28
  6. Step 6: Final answer
    x = 138,445.76

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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.