Home / 112,311.07-168,465.93-28,070.81

Finding the Fourth Proportional to 112,311.07, 168,465.93 and 28,070.81

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Solution

The fourth proportional to 112,311.07, 168,465.93 and 28,070.81 is: 42,106.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,311.07 : 168,465.93 = 28,070.81 : x
  2. Step 2: Convert to fraction form
    112,311.07/168,465.93 = 28,070.81/x
  3. Step 3: Cross multiply
    112,311.07x = 168,465.93 × 28,070.81
  4. Step 4: Simplify right side
    112,311.07x = 4,728,974,972.15
  5. Step 5: Solve for x
    x = 4,728,974,972.15/112,311.07
  6. Step 6: Final answer
    x = 42,106.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.