Home / 99,114.24-136,830.72-76,403.52

Finding the Fourth Proportional to 99,114.24, 136,830.72 and 76,403.52

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Solution

The fourth proportional to 99,114.24, 136,830.72 and 76,403.52 is: 105,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,114.24 : 136,830.72 = 76,403.52 : x
  2. Step 2: Convert to fraction form
    99,114.24/136,830.72 = 76,403.52/x
  3. Step 3: Cross multiply
    99,114.24x = 136,830.72 × 76,403.52
  4. Step 4: Simplify right side
    99,114.24x = 10,454,348,652.13
  5. Step 5: Solve for x
    x = 10,454,348,652.13/99,114.24
  6. Step 6: Final answer
    x = 105,477.77

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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.