Home / 145,568.52-218,278.89-66,615.12

Finding the Fourth Proportional to 145,568.52, 218,278.89 and 66,615.12

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Solution

The fourth proportional to 145,568.52, 218,278.89 and 66,615.12 is: 99,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,568.52 : 218,278.89 = 66,615.12 : x
  2. Step 2: Convert to fraction form
    145,568.52/218,278.89 = 66,615.12/x
  3. Step 3: Cross multiply
    145,568.52x = 218,278.89 × 66,615.12
  4. Step 4: Simplify right side
    145,568.52x = 14,540,674,450.82
  5. Step 5: Solve for x
    x = 14,540,674,450.82/145,568.52
  6. Step 6: Final answer
    x = 99,888.87

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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.