Home / 152,378.15-210,283.38-91,937.09

Finding the Fourth Proportional to 152,378.15, 210,283.38 and 91,937.09

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Solution

The fourth proportional to 152,378.15, 210,283.38 and 91,937.09 is: 126,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,378.15 : 210,283.38 = 91,937.09 : x
  2. Step 2: Convert to fraction form
    152,378.15/210,283.38 = 91,937.09/x
  3. Step 3: Cross multiply
    152,378.15x = 210,283.38 × 91,937.09
  4. Step 4: Simplify right side
    152,378.15x = 19,332,842,558.27
  5. Step 5: Solve for x
    x = 19,332,842,558.27/152,378.15
  6. Step 6: Final answer
    x = 126,874.12

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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.