Home / 118,861.58-178,319.28-39,973.64

Finding the Fourth Proportional to 118,861.58, 178,319.28 and 39,973.64

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Solution

The fourth proportional to 118,861.58, 178,319.28 and 39,973.64 is: 59,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,861.58 : 178,319.28 = 39,973.64 : x
  2. Step 2: Convert to fraction form
    118,861.58/178,319.28 = 39,973.64/x
  3. Step 3: Cross multiply
    118,861.58x = 178,319.28 × 39,973.64
  4. Step 4: Simplify right side
    118,861.58x = 7,128,070,703.78
  5. Step 5: Solve for x
    x = 7,128,070,703.78/118,861.58
  6. Step 6: Final answer
    x = 59,969.51

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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.