Home / 127,221.12-190,718.28-48,281.76

Finding the Fourth Proportional to 127,221.12, 190,718.28 and 48,281.76

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Solution

The fourth proportional to 127,221.12, 190,718.28 and 48,281.76 is: 72,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,221.12 : 190,718.28 = 48,281.76 : x
  2. Step 2: Convert to fraction form
    127,221.12/190,718.28 = 48,281.76/x
  3. Step 3: Cross multiply
    127,221.12x = 190,718.28 × 48,281.76
  4. Step 4: Simplify right side
    127,221.12x = 9,208,214,222.57
  5. Step 5: Solve for x
    x = 9,208,214,222.57/127,221.12
  6. Step 6: Final answer
    x = 72,379.60

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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.