Home / 113,312.04-169,968-53,967.78

Finding the Fourth Proportional to 113,312.04, 169,968 and 53,967.78

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Solution

The fourth proportional to 113,312.04, 169,968 and 53,967.78 is: 80,951.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,312.04 : 169,968 = 53,967.78 : x
  2. Step 2: Convert to fraction form
    113,312.04/169,968 = 53,967.78/x
  3. Step 3: Cross multiply
    113,312.04x = 169,968 × 53,967.78
  4. Step 4: Simplify right side
    113,312.04x = 9,172,795,631.04
  5. Step 5: Solve for x
    x = 9,172,795,631.04/113,312.04
  6. Step 6: Final answer
    x = 80,951.64

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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.