Home / 105,040.32-157,560.40-31,168.32

Finding the Fourth Proportional to 105,040.32, 157,560.40 and 31,168.32

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Solution

The fourth proportional to 105,040.32, 157,560.40 and 31,168.32 is: 46,752.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,040.32 : 157,560.40 = 31,168.32 : x
  2. Step 2: Convert to fraction form
    105,040.32/157,560.40 = 31,168.32/x
  3. Step 3: Cross multiply
    105,040.32x = 157,560.40 × 31,168.32
  4. Step 4: Simplify right side
    105,040.32x = 4,910,892,966.53
  5. Step 5: Solve for x
    x = 4,910,892,966.53/105,040.32
  6. Step 6: Final answer
    x = 46,752.46

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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.