Home / 99,230.55-136,935-56,788.17

Finding the Fourth Proportional to 99,230.55, 136,935 and 56,788.17

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Solution

The fourth proportional to 99,230.55, 136,935 and 56,788.17 is: 78,365.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,230.55 : 136,935 = 56,788.17 : x
  2. Step 2: Convert to fraction form
    99,230.55/136,935 = 56,788.17/x
  3. Step 3: Cross multiply
    99,230.55x = 136,935 × 56,788.17
  4. Step 4: Simplify right side
    99,230.55x = 7,776,288,058.95
  5. Step 5: Solve for x
    x = 7,776,288,058.95/99,230.55
  6. Step 6: Final answer
    x = 78,365.87

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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.