Home / 130,885.23-180,616.59-79,983.11

Finding the Fourth Proportional to 130,885.23, 180,616.59 and 79,983.11

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Solution

The fourth proportional to 130,885.23, 180,616.59 and 79,983.11 is: 110,373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,885.23 : 180,616.59 = 79,983.11 : x
  2. Step 2: Convert to fraction form
    130,885.23/180,616.59 = 79,983.11/x
  3. Step 3: Cross multiply
    130,885.23x = 180,616.59 × 79,983.11
  4. Step 4: Simplify right side
    130,885.23x = 14,446,275,682.71
  5. Step 5: Solve for x
    x = 14,446,275,682.71/130,885.23
  6. Step 6: Final answer
    x = 110,373.61

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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.