Home / 112,025.80-168,038.70-72,627.40

Finding the Fourth Proportional to 112,025.80, 168,038.70 and 72,627.40

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Solution

The fourth proportional to 112,025.80, 168,038.70 and 72,627.40 is: 108,941.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,025.80 : 168,038.70 = 72,627.40 : x
  2. Step 2: Convert to fraction form
    112,025.80/168,038.70 = 72,627.40/x
  3. Step 3: Cross multiply
    112,025.80x = 168,038.70 × 72,627.40
  4. Step 4: Simplify right side
    112,025.80x = 12,204,213,880.38
  5. Step 5: Solve for x
    x = 12,204,213,880.38/112,025.80
  6. Step 6: Final answer
    x = 108,941.10

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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.