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Finding the Fourth Proportional to 113,780.30, 170,342.40 and 113,780.30

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Solution

The fourth proportional to 113,780.30, 170,342.40 and 113,780.30 is: 170,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,780.30 : 170,342.40 = 113,780.30 : x
  2. Step 2: Convert to fraction form
    113,780.30/170,342.40 = 113,780.30/x
  3. Step 3: Cross multiply
    113,780.30x = 170,342.40 × 113,780.30
  4. Step 4: Simplify right side
    113,780.30x = 19,381,609,374.72
  5. Step 5: Solve for x
    x = 19,381,609,374.72/113,780.30
  6. Step 6: Final answer
    x = 170,342.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.