Home / 141,871.04-195,783.35-78,211.12

Finding the Fourth Proportional to 141,871.04, 195,783.35 and 78,211.12

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Solution

The fourth proportional to 141,871.04, 195,783.35 and 78,211.12 is: 107,932.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,871.04 : 195,783.35 = 78,211.12 : x
  2. Step 2: Convert to fraction form
    141,871.04/195,783.35 = 78,211.12/x
  3. Step 3: Cross multiply
    141,871.04x = 195,783.35 × 78,211.12
  4. Step 4: Simplify right side
    141,871.04x = 15,312,435,227.34
  5. Step 5: Solve for x
    x = 15,312,435,227.34/141,871.04
  6. Step 6: Final answer
    x = 107,932.07

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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.