Home / 127,210.20-190,837.28-42,970.97

Finding the Fourth Proportional to 127,210.20, 190,837.28 and 42,970.97

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Solution

The fourth proportional to 127,210.20, 190,837.28 and 42,970.97 is: 64,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,210.20 : 190,837.28 = 42,970.97 : x
  2. Step 2: Convert to fraction form
    127,210.20/190,837.28 = 42,970.97/x
  3. Step 3: Cross multiply
    127,210.20x = 190,837.28 × 42,970.97
  4. Step 4: Simplify right side
    127,210.20x = 8,200,463,033.76
  5. Step 5: Solve for x
    x = 8,200,463,033.76/127,210.20
  6. Step 6: Final answer
    x = 64,463.88

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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.