Home / 130,505.95-180,110.82-73,154.98

Finding the Fourth Proportional to 130,505.95, 180,110.82 and 73,154.98

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Solution

The fourth proportional to 130,505.95, 180,110.82 and 73,154.98 is: 100,960.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,505.95 : 180,110.82 = 73,154.98 : x
  2. Step 2: Convert to fraction form
    130,505.95/180,110.82 = 73,154.98/x
  3. Step 3: Cross multiply
    130,505.95x = 180,110.82 × 73,154.98
  4. Step 4: Simplify right side
    130,505.95x = 13,176,003,434.88
  5. Step 5: Solve for x
    x = 13,176,003,434.88/130,505.95
  6. Step 6: Final answer
    x = 100,960.94

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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.