Home / 112,655.88-155,467.35-69,641.64

Finding the Fourth Proportional to 112,655.88, 155,467.35 and 69,641.64

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Solution

The fourth proportional to 112,655.88, 155,467.35 and 69,641.64 is: 96,106.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,655.88 : 155,467.35 = 69,641.64 : x
  2. Step 2: Convert to fraction form
    112,655.88/155,467.35 = 69,641.64/x
  3. Step 3: Cross multiply
    112,655.88x = 155,467.35 × 69,641.64
  4. Step 4: Simplify right side
    112,655.88x = 10,827,001,220.45
  5. Step 5: Solve for x
    x = 10,827,001,220.45/112,655.88
  6. Step 6: Final answer
    x = 96,106.85

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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.