Home / 134,923.69-186,211.10-78,335.06

Finding the Fourth Proportional to 134,923.69, 186,211.10 and 78,335.06

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Solution

The fourth proportional to 134,923.69, 186,211.10 and 78,335.06 is: 108,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,923.69 : 186,211.10 = 78,335.06 : x
  2. Step 2: Convert to fraction form
    134,923.69/186,211.10 = 78,335.06/x
  3. Step 3: Cross multiply
    134,923.69x = 186,211.10 × 78,335.06
  4. Step 4: Simplify right side
    134,923.69x = 14,586,858,352.53
  5. Step 5: Solve for x
    x = 14,586,858,352.53/134,923.69
  6. Step 6: Final answer
    x = 108,111.92

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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.