Home / 103,513.20-142,860.14-57,577.42

Finding the Fourth Proportional to 103,513.20, 142,860.14 and 57,577.42

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Solution

The fourth proportional to 103,513.20, 142,860.14 and 57,577.42 is: 79,463.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,513.20 : 142,860.14 = 57,577.42 : x
  2. Step 2: Convert to fraction form
    103,513.20/142,860.14 = 57,577.42/x
  3. Step 3: Cross multiply
    103,513.20x = 142,860.14 × 57,577.42
  4. Step 4: Simplify right side
    103,513.20x = 8,225,518,282.04
  5. Step 5: Solve for x
    x = 8,225,518,282.04/103,513.20
  6. Step 6: Final answer
    x = 79,463.47

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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.