Home / 219,226.68-302,518.53-123,720.39

Finding the Fourth Proportional to 219,226.68, 302,518.53 and 123,720.39

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Solution

The fourth proportional to 219,226.68, 302,518.53 and 123,720.39 is: 170,726.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,226.68 : 302,518.53 = 123,720.39 : x
  2. Step 2: Convert to fraction form
    219,226.68/302,518.53 = 123,720.39/x
  3. Step 3: Cross multiply
    219,226.68x = 302,518.53 × 123,720.39
  4. Step 4: Simplify right side
    219,226.68x = 37,427,710,513.83
  5. Step 5: Solve for x
    x = 37,427,710,513.83/219,226.68
  6. Step 6: Final answer
    x = 170,726.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.