Home / 119,618.10-179,621.55-86,570.10

Finding the Fourth Proportional to 119,618.10, 179,621.55 and 86,570.10

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Solution

The fourth proportional to 119,618.10, 179,621.55 and 86,570.10 is: 129,995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,618.10 : 179,621.55 = 86,570.10 : x
  2. Step 2: Convert to fraction form
    119,618.10/179,621.55 = 86,570.10/x
  3. Step 3: Cross multiply
    119,618.10x = 179,621.55 × 86,570.10
  4. Step 4: Simplify right side
    119,618.10x = 15,549,855,545.66
  5. Step 5: Solve for x
    x = 15,549,855,545.66/119,618.10
  6. Step 6: Final answer
    x = 129,995.84

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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.