Home / 113,417.20-170,125.80-76,092.40

Finding the Fourth Proportional to 113,417.20, 170,125.80 and 76,092.40

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Solution

The fourth proportional to 113,417.20, 170,125.80 and 76,092.40 is: 114,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,417.20 : 170,125.80 = 76,092.40 : x
  2. Step 2: Convert to fraction form
    113,417.20/170,125.80 = 76,092.40/x
  3. Step 3: Cross multiply
    113,417.20x = 170,125.80 × 76,092.40
  4. Step 4: Simplify right side
    113,417.20x = 12,945,280,423.92
  5. Step 5: Solve for x
    x = 12,945,280,423.92/113,417.20
  6. Step 6: Final answer
    x = 114,138.60

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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.