Home / 189,336.84-261,275.73-103,290.69

Finding the Fourth Proportional to 189,336.84, 261,275.73 and 103,290.69

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Solution

The fourth proportional to 189,336.84, 261,275.73 and 103,290.69 is: 142,536.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,336.84 : 261,275.73 = 103,290.69 : x
  2. Step 2: Convert to fraction form
    189,336.84/261,275.73 = 103,290.69/x
  3. Step 3: Cross multiply
    189,336.84x = 261,275.73 × 103,290.69
  4. Step 4: Simplify right side
    189,336.84x = 26,987,349,864.46
  5. Step 5: Solve for x
    x = 26,987,349,864.46/189,336.84
  6. Step 6: Final answer
    x = 142,536.18

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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.