Home / 130,573.35-180,124.90-85,277.85

Finding the Fourth Proportional to 130,573.35, 180,124.90 and 85,277.85

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Solution

The fourth proportional to 130,573.35, 180,124.90 and 85,277.85 is: 117,640.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,573.35 : 180,124.90 = 85,277.85 : x
  2. Step 2: Convert to fraction form
    130,573.35/180,124.90 = 85,277.85/x
  3. Step 3: Cross multiply
    130,573.35x = 180,124.90 × 85,277.85
  4. Step 4: Simplify right side
    130,573.35x = 15,360,663,674.57
  5. Step 5: Solve for x
    x = 15,360,663,674.57/130,573.35
  6. Step 6: Final answer
    x = 117,640.11

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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.