Home / 145,605.26-218,407.69-45,774.18

Finding the Fourth Proportional to 145,605.26, 218,407.69 and 45,774.18

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Solution

The fourth proportional to 145,605.26, 218,407.69 and 45,774.18 is: 68,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,605.26 : 218,407.69 = 45,774.18 : x
  2. Step 2: Convert to fraction form
    145,605.26/218,407.69 = 45,774.18/x
  3. Step 3: Cross multiply
    145,605.26x = 218,407.69 × 45,774.18
  4. Step 4: Simplify right side
    145,605.26x = 9,997,432,915.44
  5. Step 5: Solve for x
    x = 9,997,432,915.44/145,605.26
  6. Step 6: Final answer
    x = 68,661.21

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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.