Home / 148,870.90-205,439.36-80,888.92

Finding the Fourth Proportional to 148,870.90, 205,439.36 and 80,888.92

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Solution

The fourth proportional to 148,870.90, 205,439.36 and 80,888.92 is: 111,625.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,870.90 : 205,439.36 = 80,888.92 : x
  2. Step 2: Convert to fraction form
    148,870.90/205,439.36 = 80,888.92/x
  3. Step 3: Cross multiply
    148,870.90x = 205,439.36 × 80,888.92
  4. Step 4: Simplify right side
    148,870.90x = 16,617,767,037.85
  5. Step 5: Solve for x
    x = 16,617,767,037.85/148,870.90
  6. Step 6: Final answer
    x = 111,625.35

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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.