Home / 131,429.64-181,372.71-74,841.03

Finding the Fourth Proportional to 131,429.64, 181,372.71 and 74,841.03

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Solution

The fourth proportional to 131,429.64, 181,372.71 and 74,841.03 is: 103,280.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,429.64 : 181,372.71 = 74,841.03 : x
  2. Step 2: Convert to fraction form
    131,429.64/181,372.71 = 74,841.03/x
  3. Step 3: Cross multiply
    131,429.64x = 181,372.71 × 74,841.03
  4. Step 4: Simplify right side
    131,429.64x = 13,574,120,430.29
  5. Step 5: Solve for x
    x = 13,574,120,430.29/131,429.64
  6. Step 6: Final answer
    x = 103,280.51

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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.