Home / 145,441.80-218,279.22-75,341.16

Finding the Fourth Proportional to 145,441.80, 218,279.22 and 75,341.16

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Solution

The fourth proportional to 145,441.80, 218,279.22 and 75,341.16 is: 113,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,441.80 : 218,279.22 = 75,341.16 : x
  2. Step 2: Convert to fraction form
    145,441.80/218,279.22 = 75,341.16/x
  3. Step 3: Cross multiply
    145,441.80x = 218,279.22 × 75,341.16
  4. Step 4: Simplify right side
    145,441.80x = 16,445,409,638.70
  5. Step 5: Solve for x
    x = 16,445,409,638.70/145,441.80
  6. Step 6: Final answer
    x = 113,072.10

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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.