Home / 145,589.65-200,913.31-81,927.45

Finding the Fourth Proportional to 145,589.65, 200,913.31 and 81,927.45

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Solution

The fourth proportional to 145,589.65, 200,913.31 and 81,927.45 is: 113,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,589.65 : 200,913.31 = 81,927.45 : x
  2. Step 2: Convert to fraction form
    145,589.65/200,913.31 = 81,927.45/x
  3. Step 3: Cross multiply
    145,589.65x = 200,913.31 × 81,927.45
  4. Step 4: Simplify right side
    145,589.65x = 16,460,315,261.77
  5. Step 5: Solve for x
    x = 16,460,315,261.77/145,589.65
  6. Step 6: Final answer
    x = 113,059.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.