Home / 127,783.04-191,671.68-57,612.80

Finding the Fourth Proportional to 127,783.04, 191,671.68 and 57,612.80

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Solution

The fourth proportional to 127,783.04, 191,671.68 and 57,612.80 is: 86,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,783.04 : 191,671.68 = 57,612.80 : x
  2. Step 2: Convert to fraction form
    127,783.04/191,671.68 = 57,612.80/x
  3. Step 3: Cross multiply
    127,783.04x = 191,671.68 × 57,612.80
  4. Step 4: Simplify right side
    127,783.04x = 11,042,742,165.50
  5. Step 5: Solve for x
    x = 11,042,742,165.50/127,783.04
  6. Step 6: Final answer
    x = 86,417.90

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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.