Home / 145,500.58-218,177.06-66,547.16

Finding the Fourth Proportional to 145,500.58, 218,177.06 and 66,547.16

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Solution

The fourth proportional to 145,500.58, 218,177.06 and 66,547.16 is: 99,786.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,500.58 : 218,177.06 = 66,547.16 : x
  2. Step 2: Convert to fraction form
    145,500.58/218,177.06 = 66,547.16/x
  3. Step 3: Cross multiply
    145,500.58x = 218,177.06 × 66,547.16
  4. Step 4: Simplify right side
    145,500.58x = 14,519,063,720.15
  5. Step 5: Solve for x
    x = 14,519,063,720.15/145,500.58
  6. Step 6: Final answer
    x = 99,786.98

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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.