Home / 141,292.80-194,774.40-103,507.20

Finding the Fourth Proportional to 141,292.80, 194,774.40 and 103,507.20

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Solution

The fourth proportional to 141,292.80, 194,774.40 and 103,507.20 is: 142,686.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,292.80 : 194,774.40 = 103,507.20 : x
  2. Step 2: Convert to fraction form
    141,292.80/194,774.40 = 103,507.20/x
  3. Step 3: Cross multiply
    141,292.80x = 194,774.40 × 103,507.20
  4. Step 4: Simplify right side
    141,292.80x = 20,160,552,775.68
  5. Step 5: Solve for x
    x = 20,160,552,775.68/141,292.80
  6. Step 6: Final answer
    x = 142,686.34

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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.