Home / 127,284.10-191,130.15-101,205.70

Finding the Fourth Proportional to 127,284.10, 191,130.15 and 101,205.70

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Solution

The fourth proportional to 127,284.10, 191,130.15 and 101,205.70 is: 151,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,284.10 : 191,130.15 = 101,205.70 : x
  2. Step 2: Convert to fraction form
    127,284.10/191,130.15 = 101,205.70/x
  3. Step 3: Cross multiply
    127,284.10x = 191,130.15 × 101,205.70
  4. Step 4: Simplify right side
    127,284.10x = 19,343,460,621.86
  5. Step 5: Solve for x
    x = 19,343,460,621.86/127,284.10
  6. Step 6: Final answer
    x = 151,970.75

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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.