Home / 141,810.59-195,689.34-78,148.37

Finding the Fourth Proportional to 141,810.59, 195,689.34 and 78,148.37

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Solution

The fourth proportional to 141,810.59, 195,689.34 and 78,148.37 is: 107,839.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,810.59 : 195,689.34 = 78,148.37 : x
  2. Step 2: Convert to fraction form
    141,810.59/195,689.34 = 78,148.37/x
  3. Step 3: Cross multiply
    141,810.59x = 195,689.34 × 78,148.37
  4. Step 4: Simplify right side
    141,810.59x = 15,292,803,436.60
  5. Step 5: Solve for x
    x = 15,292,803,436.60/141,810.59
  6. Step 6: Final answer
    x = 107,839.64

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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.