Home / 99,105.19-136,720.51-58,820.65

Finding the Fourth Proportional to 99,105.19, 136,720.51 and 58,820.65

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Solution

The fourth proportional to 99,105.19, 136,720.51 and 58,820.65 is: 81,146.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,105.19 : 136,720.51 = 58,820.65 : x
  2. Step 2: Convert to fraction form
    99,105.19/136,720.51 = 58,820.65/x
  3. Step 3: Cross multiply
    99,105.19x = 136,720.51 × 58,820.65
  4. Step 4: Simplify right side
    99,105.19x = 8,041,989,266.53
  5. Step 5: Solve for x
    x = 8,041,989,266.53/99,105.19
  6. Step 6: Final answer
    x = 81,146.00

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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.