Home / 113,900.04-170,752.80-80,515.08

Finding the Fourth Proportional to 113,900.04, 170,752.80 and 80,515.08

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Solution

The fourth proportional to 113,900.04, 170,752.80 and 80,515.08 is: 120,703.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,900.04 : 170,752.80 = 80,515.08 : x
  2. Step 2: Convert to fraction form
    113,900.04/170,752.80 = 80,515.08/x
  3. Step 3: Cross multiply
    113,900.04x = 170,752.80 × 80,515.08
  4. Step 4: Simplify right side
    113,900.04x = 13,748,175,352.22
  5. Step 5: Solve for x
    x = 13,748,175,352.22/113,900.04
  6. Step 6: Final answer
    x = 120,703.87

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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.