Home / 112,303.45-155,688.45-106,311.07

Finding the Fourth Proportional to 112,303.45, 155,688.45 and 106,311.07

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Solution

The fourth proportional to 112,303.45, 155,688.45 and 106,311.07 is: 147,381.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,303.45 : 155,688.45 = 106,311.07 : x
  2. Step 2: Convert to fraction form
    112,303.45/155,688.45 = 106,311.07/x
  3. Step 3: Cross multiply
    112,303.45x = 155,688.45 × 106,311.07
  4. Step 4: Simplify right side
    112,303.45x = 16,551,405,706.14
  5. Step 5: Solve for x
    x = 16,551,405,706.14/112,303.45
  6. Step 6: Final answer
    x = 147,381.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.