Home / 130,529.34-180,126.99-76,817.52

Finding the Fourth Proportional to 130,529.34, 180,126.99 and 76,817.52

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Solution

The fourth proportional to 130,529.34, 180,126.99 and 76,817.52 is: 106,006.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,529.34 : 180,126.99 = 76,817.52 : x
  2. Step 2: Convert to fraction form
    130,529.34/180,126.99 = 76,817.52/x
  3. Step 3: Cross multiply
    130,529.34x = 180,126.99 × 76,817.52
  4. Step 4: Simplify right side
    130,529.34x = 13,836,908,656.86
  5. Step 5: Solve for x
    x = 13,836,908,656.86/130,529.34
  6. Step 6: Final answer
    x = 106,006.12

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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.