Home / 103,166.28-142,431.58-67,416.12

Finding the Fourth Proportional to 103,166.28, 142,431.58 and 67,416.12

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Solution

The fourth proportional to 103,166.28, 142,431.58 and 67,416.12 is: 93,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,166.28 : 142,431.58 = 67,416.12 : x
  2. Step 2: Convert to fraction form
    103,166.28/142,431.58 = 67,416.12/x
  3. Step 3: Cross multiply
    103,166.28x = 142,431.58 × 67,416.12
  4. Step 4: Simplify right side
    103,166.28x = 9,602,184,489.07
  5. Step 5: Solve for x
    x = 9,602,184,489.07/103,166.28
  6. Step 6: Final answer
    x = 93,074.84

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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.