Home / 148,518.42-204,955.90-80,535.35

Finding the Fourth Proportional to 148,518.42, 204,955.90 and 80,535.35

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Solution

The fourth proportional to 148,518.42, 204,955.90 and 80,535.35 is: 111,139.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,518.42 : 204,955.90 = 80,535.35 : x
  2. Step 2: Convert to fraction form
    148,518.42/204,955.90 = 80,535.35/x
  3. Step 3: Cross multiply
    148,518.42x = 204,955.90 × 80,535.35
  4. Step 4: Simplify right side
    148,518.42x = 16,506,195,141.07
  5. Step 5: Solve for x
    x = 16,506,195,141.07/148,518.42
  6. Step 6: Final answer
    x = 111,139.04

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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.