Home / 154,931.12-232,240.08-105,016.40

Finding the Fourth Proportional to 154,931.12, 232,240.08 and 105,016.40

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Solution

The fourth proportional to 154,931.12, 232,240.08 and 105,016.40 is: 157,418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,931.12 : 232,240.08 = 105,016.40 : x
  2. Step 2: Convert to fraction form
    154,931.12/232,240.08 = 105,016.40/x
  3. Step 3: Cross multiply
    154,931.12x = 232,240.08 × 105,016.40
  4. Step 4: Simplify right side
    154,931.12x = 24,389,017,137.31
  5. Step 5: Solve for x
    x = 24,389,017,137.31/154,931.12
  6. Step 6: Final answer
    x = 157,418.45

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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.