Home / 148,813.50-205,376.40-81,758.46

Finding the Fourth Proportional to 148,813.50, 205,376.40 and 81,758.46

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Solution

The fourth proportional to 148,813.50, 205,376.40 and 81,758.46 is: 112,834.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,813.50 : 205,376.40 = 81,758.46 : x
  2. Step 2: Convert to fraction form
    148,813.50/205,376.40 = 81,758.46/x
  3. Step 3: Cross multiply
    148,813.50x = 205,376.40 × 81,758.46
  4. Step 4: Simplify right side
    148,813.50x = 16,791,258,184.34
  5. Step 5: Solve for x
    x = 16,791,258,184.34/148,813.50
  6. Step 6: Final answer
    x = 112,834.24

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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.