Home / 127,030.49-190,619.55-56,909.80

Finding the Fourth Proportional to 127,030.49, 190,619.55 and 56,909.80

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Solution

The fourth proportional to 127,030.49, 190,619.55 and 56,909.80 is: 85,397.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,030.49 : 190,619.55 = 56,909.80 : x
  2. Step 2: Convert to fraction form
    127,030.49/190,619.55 = 56,909.80/x
  3. Step 3: Cross multiply
    127,030.49x = 190,619.55 × 56,909.80
  4. Step 4: Simplify right side
    127,030.49x = 10,848,120,704.86
  5. Step 5: Solve for x
    x = 10,848,120,704.86/127,030.49
  6. Step 6: Final answer
    x = 85,397.77

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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.