Home / 189,441.52-261,425.32-103,397.68

Finding the Fourth Proportional to 189,441.52, 261,425.32 and 103,397.68

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Solution

The fourth proportional to 189,441.52, 261,425.32 and 103,397.68 is: 142,686.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,441.52 : 261,425.32 = 103,397.68 : x
  2. Step 2: Convert to fraction form
    189,441.52/261,425.32 = 103,397.68/x
  3. Step 3: Cross multiply
    189,441.52x = 261,425.32 × 103,397.68
  4. Step 4: Simplify right side
    189,441.52x = 27,030,771,581.26
  5. Step 5: Solve for x
    x = 27,030,771,581.26/189,441.52
  6. Step 6: Final answer
    x = 142,686.63

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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.