Home / 105,787.02-158,695.35-30,912.66

Finding the Fourth Proportional to 105,787.02, 158,695.35 and 30,912.66

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Solution

The fourth proportional to 105,787.02, 158,695.35 and 30,912.66 is: 46,373.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,787.02 : 158,695.35 = 30,912.66 : x
  2. Step 2: Convert to fraction form
    105,787.02/158,695.35 = 30,912.66/x
  3. Step 3: Cross multiply
    105,787.02x = 158,695.35 × 30,912.66
  4. Step 4: Simplify right side
    105,787.02x = 4,905,695,398.13
  5. Step 5: Solve for x
    x = 4,905,695,398.13/105,787.02
  6. Step 6: Final answer
    x = 46,373.32

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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.