Home / 127,078.21-190,561.95-42,822.67

Finding the Fourth Proportional to 127,078.21, 190,561.95 and 42,822.67

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Solution

The fourth proportional to 127,078.21, 190,561.95 and 42,822.67 is: 64,215.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,078.21 : 190,561.95 = 42,822.67 : x
  2. Step 2: Convert to fraction form
    127,078.21/190,561.95 = 42,822.67/x
  3. Step 3: Cross multiply
    127,078.21x = 190,561.95 × 42,822.67
  4. Step 4: Simplify right side
    127,078.21x = 8,160,371,577.02
  5. Step 5: Solve for x
    x = 8,160,371,577.02/127,078.21
  6. Step 6: Final answer
    x = 64,215.35

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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.