Home / 152,787.86-210,844.25-84,805.65

Finding the Fourth Proportional to 152,787.86, 210,844.25 and 84,805.65

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Solution

The fourth proportional to 152,787.86, 210,844.25 and 84,805.65 is: 117,030.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,787.86 : 210,844.25 = 84,805.65 : x
  2. Step 2: Convert to fraction form
    152,787.86/210,844.25 = 84,805.65/x
  3. Step 3: Cross multiply
    152,787.86x = 210,844.25 × 84,805.65
  4. Step 4: Simplify right side
    152,787.86x = 17,880,784,157.00
  5. Step 5: Solve for x
    x = 17,880,784,157.00/152,787.86
  6. Step 6: Final answer
    x = 117,030.13

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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.