Home / 130,869.85-180,595.63-79,967.77

Finding the Fourth Proportional to 130,869.85, 180,595.63 and 79,967.77

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Solution

The fourth proportional to 130,869.85, 180,595.63 and 79,967.77 is: 110,352.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,869.85 : 180,595.63 = 79,967.77 : x
  2. Step 2: Convert to fraction form
    130,869.85/180,595.63 = 79,967.77/x
  3. Step 3: Cross multiply
    130,869.85x = 180,595.63 × 79,967.77
  4. Step 4: Simplify right side
    130,869.85x = 14,441,829,255.46
  5. Step 5: Solve for x
    x = 14,441,829,255.46/130,869.85
  6. Step 6: Final answer
    x = 110,352.61

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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.