Home / 70,152.12-105,254.10-25,807.86

Finding the Fourth Proportional to 70,152.12, 105,254.10 and 25,807.86

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Solution

The fourth proportional to 70,152.12, 105,254.10 and 25,807.86 is: 38,721.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,152.12 : 105,254.10 = 25,807.86 : x
  2. Step 2: Convert to fraction form
    70,152.12/105,254.10 = 25,807.86/x
  3. Step 3: Cross multiply
    70,152.12x = 105,254.10 × 25,807.86
  4. Step 4: Simplify right side
    70,152.12x = 2,716,383,077.23
  5. Step 5: Solve for x
    x = 2,716,383,077.23/70,152.12
  6. Step 6: Final answer
    x = 38,721.33

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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.