Home / 112,911.08-155,795.20-66,962.21

Finding the Fourth Proportional to 112,911.08, 155,795.20 and 66,962.21

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Solution

The fourth proportional to 112,911.08, 155,795.20 and 66,962.21 is: 92,394.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,911.08 : 155,795.20 = 66,962.21 : x
  2. Step 2: Convert to fraction form
    112,911.08/155,795.20 = 66,962.21/x
  3. Step 3: Cross multiply
    112,911.08x = 155,795.20 × 66,962.21
  4. Step 4: Simplify right side
    112,911.08x = 10,432,389,953.01
  5. Step 5: Solve for x
    x = 10,432,389,953.01/112,911.08
  6. Step 6: Final answer
    x = 92,394.74

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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.