Home / 134,781.90-185,998.49-74,356.30

Finding the Fourth Proportional to 134,781.90, 185,998.49 and 74,356.30

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Solution

The fourth proportional to 134,781.90, 185,998.49 and 74,356.30 is: 102,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,781.90 : 185,998.49 = 74,356.30 : x
  2. Step 2: Convert to fraction form
    134,781.90/185,998.49 = 74,356.30/x
  3. Step 3: Cross multiply
    134,781.90x = 185,998.49 × 74,356.30
  4. Step 4: Simplify right side
    134,781.90x = 13,830,159,661.54
  5. Step 5: Solve for x
    x = 13,830,159,661.54/134,781.90
  6. Step 6: Final answer
    x = 102,611.40

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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.