Home / 129,265.76-178,328.45-75,526.62

Finding the Fourth Proportional to 129,265.76, 178,328.45 and 75,526.62

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Solution

The fourth proportional to 129,265.76, 178,328.45 and 75,526.62 is: 104,192.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,265.76 : 178,328.45 = 75,526.62 : x
  2. Step 2: Convert to fraction form
    129,265.76/178,328.45 = 75,526.62/x
  3. Step 3: Cross multiply
    129,265.76x = 178,328.45 × 75,526.62
  4. Step 4: Simplify right side
    129,265.76x = 13,468,545,078.34
  5. Step 5: Solve for x
    x = 13,468,545,078.34/129,265.76
  6. Step 6: Final answer
    x = 104,192.67

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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.