Home / 127,220.10-190,903.05-48,390.90

Finding the Fourth Proportional to 127,220.10, 190,903.05 and 48,390.90

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Solution

The fourth proportional to 127,220.10, 190,903.05 and 48,390.90 is: 72,614.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,220.10 : 190,903.05 = 48,390.90 : x
  2. Step 2: Convert to fraction form
    127,220.10/190,903.05 = 48,390.90/x
  3. Step 3: Cross multiply
    127,220.10x = 190,903.05 × 48,390.90
  4. Step 4: Simplify right side
    127,220.10x = 9,237,970,402.25
  5. Step 5: Solve for x
    x = 9,237,970,402.25/127,220.10
  6. Step 6: Final answer
    x = 72,614.08

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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.