Home / 103,860.16-143,282.08-65,593.12

Finding the Fourth Proportional to 103,860.16, 143,282.08 and 65,593.12

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Solution

The fourth proportional to 103,860.16, 143,282.08 and 65,593.12 is: 90,490.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,860.16 : 143,282.08 = 65,593.12 : x
  2. Step 2: Convert to fraction form
    103,860.16/143,282.08 = 65,593.12/x
  3. Step 3: Cross multiply
    103,860.16x = 143,282.08 × 65,593.12
  4. Step 4: Simplify right side
    103,860.16x = 9,398,318,667.29
  5. Step 5: Solve for x
    x = 9,398,318,667.29/103,860.16
  6. Step 6: Final answer
    x = 90,490.12

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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.