Home / 130,941.78-180,700.89-74,354.34

Finding the Fourth Proportional to 130,941.78, 180,700.89 and 74,354.34

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Solution

The fourth proportional to 130,941.78, 180,700.89 and 74,354.34 is: 102,609.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,941.78 : 180,700.89 = 74,354.34 : x
  2. Step 2: Convert to fraction form
    130,941.78/180,700.89 = 74,354.34/x
  3. Step 3: Cross multiply
    130,941.78x = 180,700.89 × 74,354.34
  4. Step 4: Simplify right side
    130,941.78x = 13,435,895,413.36
  5. Step 5: Solve for x
    x = 13,435,895,413.36/130,941.78
  6. Step 6: Final answer
    x = 102,609.69

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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.