Home / 148,155.18-204,459.03-81,087.18

Finding the Fourth Proportional to 148,155.18, 204,459.03 and 81,087.18

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Solution

The fourth proportional to 148,155.18, 204,459.03 and 81,087.18 is: 111,902.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,155.18 : 204,459.03 = 81,087.18 : x
  2. Step 2: Convert to fraction form
    148,155.18/204,459.03 = 81,087.18/x
  3. Step 3: Cross multiply
    148,155.18x = 204,459.03 × 81,087.18
  4. Step 4: Simplify right side
    148,155.18x = 16,579,006,168.24
  5. Step 5: Solve for x
    x = 16,579,006,168.24/148,155.18
  6. Step 6: Final answer
    x = 111,902.98

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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.