Home / 74,151.35-102,328.34-40,159.06

Finding the Fourth Proportional to 74,151.35, 102,328.34 and 40,159.06

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Solution

The fourth proportional to 74,151.35, 102,328.34 and 40,159.06 is: 55,419.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,151.35 : 102,328.34 = 40,159.06 : x
  2. Step 2: Convert to fraction form
    74,151.35/102,328.34 = 40,159.06/x
  3. Step 3: Cross multiply
    74,151.35x = 102,328.34 × 40,159.06
  4. Step 4: Simplify right side
    74,151.35x = 4,109,409,790.34
  5. Step 5: Solve for x
    x = 4,109,409,790.34/74,151.35
  6. Step 6: Final answer
    x = 55,419.22

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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.