Home / 148,799.36-205,205.76-101,123.84

Finding the Fourth Proportional to 148,799.36, 205,205.76 and 101,123.84

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Solution

The fourth proportional to 148,799.36, 205,205.76 and 101,123.84 is: 139,457.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,799.36 : 205,205.76 = 101,123.84 : x
  2. Step 2: Convert to fraction form
    148,799.36/205,205.76 = 101,123.84/x
  3. Step 3: Cross multiply
    148,799.36x = 205,205.76 × 101,123.84
  4. Step 4: Simplify right side
    148,799.36x = 20,751,194,441.32
  5. Step 5: Solve for x
    x = 20,751,194,441.32/148,799.36
  6. Step 6: Final answer
    x = 139,457.55

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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.