Home / 130,701.13-180,223.49-90,344.83

Finding the Fourth Proportional to 130,701.13, 180,223.49 and 90,344.83

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Solution

The fourth proportional to 130,701.13, 180,223.49 and 90,344.83 is: 124,576.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,701.13 : 180,223.49 = 90,344.83 : x
  2. Step 2: Convert to fraction form
    130,701.13/180,223.49 = 90,344.83/x
  3. Step 3: Cross multiply
    130,701.13x = 180,223.49 × 90,344.83
  4. Step 4: Simplify right side
    130,701.13x = 16,282,259,663.77
  5. Step 5: Solve for x
    x = 16,282,259,663.77/130,701.13
  6. Step 6: Final answer
    x = 124,576.28

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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.