Home / 127,140.18-190,772.21-52,282.81

Finding the Fourth Proportional to 127,140.18, 190,772.21 and 52,282.81

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Solution

The fourth proportional to 127,140.18, 190,772.21 and 52,282.81 is: 78,449.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,140.18 : 190,772.21 = 52,282.81 : x
  2. Step 2: Convert to fraction form
    127,140.18/190,772.21 = 52,282.81/x
  3. Step 3: Cross multiply
    127,140.18x = 190,772.21 × 52,282.81
  4. Step 4: Simplify right side
    127,140.18x = 9,974,107,208.71
  5. Step 5: Solve for x
    x = 9,974,107,208.71/127,140.18
  6. Step 6: Final answer
    x = 78,449.69

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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.