Home / 129,307.50-193,960.80-40,567.68

Finding the Fourth Proportional to 129,307.50, 193,960.80 and 40,567.68

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Solution

The fourth proportional to 129,307.50, 193,960.80 and 40,567.68 is: 60,851.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,307.50 : 193,960.80 = 40,567.68 : x
  2. Step 2: Convert to fraction form
    129,307.50/193,960.80 = 40,567.68/x
  3. Step 3: Cross multiply
    129,307.50x = 193,960.80 × 40,567.68
  4. Step 4: Simplify right side
    129,307.50x = 7,868,539,666.94
  5. Step 5: Solve for x
    x = 7,868,539,666.94/129,307.50
  6. Step 6: Final answer
    x = 60,851.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.