Home / 145,779.40-218,593.50-66,825.64

Finding the Fourth Proportional to 145,779.40, 218,593.50 and 66,825.64

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Solution

The fourth proportional to 145,779.40, 218,593.50 and 66,825.64 is: 100,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,779.40 : 218,593.50 = 66,825.64 : x
  2. Step 2: Convert to fraction form
    145,779.40/218,593.50 = 66,825.64/x
  3. Step 3: Cross multiply
    145,779.40x = 218,593.50 × 66,825.64
  4. Step 4: Simplify right side
    145,779.40x = 14,607,650,537.34
  5. Step 5: Solve for x
    x = 14,607,650,537.34/145,779.40
  6. Step 6: Final answer
    x = 100,203.80

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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.