Home / 145,827.15-201,241.43-78,759.15

Finding the Fourth Proportional to 145,827.15, 201,241.43 and 78,759.15

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Solution

The fourth proportional to 145,827.15, 201,241.43 and 78,759.15 is: 108,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,827.15 : 201,241.43 = 78,759.15 : x
  2. Step 2: Convert to fraction form
    145,827.15/201,241.43 = 78,759.15/x
  3. Step 3: Cross multiply
    145,827.15x = 201,241.43 × 78,759.15
  4. Step 4: Simplify right side
    145,827.15x = 15,849,603,577.79
  5. Step 5: Solve for x
    x = 15,849,603,577.79/145,827.15
  6. Step 6: Final answer
    x = 108,687.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.