Home / 154,345.98-212,877.27-103,342.50

Finding the Fourth Proportional to 154,345.98, 212,877.27 and 103,342.50

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Solution

The fourth proportional to 154,345.98, 212,877.27 and 103,342.50 is: 142,532.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,345.98 : 212,877.27 = 103,342.50 : x
  2. Step 2: Convert to fraction form
    154,345.98/212,877.27 = 103,342.50/x
  3. Step 3: Cross multiply
    154,345.98x = 212,877.27 × 103,342.50
  4. Step 4: Simplify right side
    154,345.98x = 21,999,269,274.98
  5. Step 5: Solve for x
    x = 21,999,269,274.98/154,345.98
  6. Step 6: Final answer
    x = 142,532.18

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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.