Home / 103,966.21-143,470.14-58,643.53

Finding the Fourth Proportional to 103,966.21, 143,470.14 and 58,643.53

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Solution

The fourth proportional to 103,966.21, 143,470.14 and 58,643.53 is: 80,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,966.21 : 143,470.14 = 58,643.53 : x
  2. Step 2: Convert to fraction form
    103,966.21/143,470.14 = 58,643.53/x
  3. Step 3: Cross multiply
    103,966.21x = 143,470.14 × 58,643.53
  4. Step 4: Simplify right side
    103,966.21x = 8,413,595,459.19
  5. Step 5: Solve for x
    x = 8,413,595,459.19/103,966.21
  6. Step 6: Final answer
    x = 80,926.25

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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.