Home / 127,946.60-191,919.90-115,699.40

Finding the Fourth Proportional to 127,946.60, 191,919.90 and 115,699.40

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Solution

The fourth proportional to 127,946.60, 191,919.90 and 115,699.40 is: 173,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,946.60 : 191,919.90 = 115,699.40 : x
  2. Step 2: Convert to fraction form
    127,946.60/191,919.90 = 115,699.40/x
  3. Step 3: Cross multiply
    127,946.60x = 191,919.90 × 115,699.40
  4. Step 4: Simplify right side
    127,946.60x = 22,205,017,278.06
  5. Step 5: Solve for x
    x = 22,205,017,278.06/127,946.60
  6. Step 6: Final answer
    x = 173,549.10

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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.