Home / 126,915.60-190,336.32-42,666.24

Finding the Fourth Proportional to 126,915.60, 190,336.32 and 42,666.24

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Solution

The fourth proportional to 126,915.60, 190,336.32 and 42,666.24 is: 63,986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,915.60 : 190,336.32 = 42,666.24 : x
  2. Step 2: Convert to fraction form
    126,915.60/190,336.32 = 42,666.24/x
  3. Step 3: Cross multiply
    126,915.60x = 190,336.32 × 42,666.24
  4. Step 4: Simplify right side
    126,915.60x = 8,120,935,109.84
  5. Step 5: Solve for x
    x = 8,120,935,109.84/126,915.60
  6. Step 6: Final answer
    x = 63,986.89

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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.