Home / 99,228.08-136,935-58,381.68

Finding the Fourth Proportional to 99,228.08, 136,935 and 58,381.68

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Solution

The fourth proportional to 99,228.08, 136,935 and 58,381.68 is: 80,566.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,228.08 : 136,935 = 58,381.68 : x
  2. Step 2: Convert to fraction form
    99,228.08/136,935 = 58,381.68/x
  3. Step 3: Cross multiply
    99,228.08x = 136,935 × 58,381.68
  4. Step 4: Simplify right side
    99,228.08x = 7,994,495,350.80
  5. Step 5: Solve for x
    x = 7,994,495,350.80/99,228.08
  6. Step 6: Final answer
    x = 80,566.87

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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.