Home / 90,206.83-124,403.16-77,456.01

Finding the Fourth Proportional to 90,206.83, 124,403.16 and 77,456.01

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Solution

The fourth proportional to 90,206.83, 124,403.16 and 77,456.01 is: 106,818.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,206.83 : 124,403.16 = 77,456.01 : x
  2. Step 2: Convert to fraction form
    90,206.83/124,403.16 = 77,456.01/x
  3. Step 3: Cross multiply
    90,206.83x = 124,403.16 × 77,456.01
  4. Step 4: Simplify right side
    90,206.83x = 9,635,772,404.99
  5. Step 5: Solve for x
    x = 9,635,772,404.99/90,206.83
  6. Step 6: Final answer
    x = 106,818.66

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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.