Home / 147,345.71-203,353.93-81,941.06

Finding the Fourth Proportional to 147,345.71, 203,353.93 and 81,941.06

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Solution

The fourth proportional to 147,345.71, 203,353.93 and 81,941.06 is: 113,088.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,345.71 : 203,353.93 = 81,941.06 : x
  2. Step 2: Convert to fraction form
    147,345.71/203,353.93 = 81,941.06/x
  3. Step 3: Cross multiply
    147,345.71x = 203,353.93 × 81,941.06
  4. Step 4: Simplify right side
    147,345.71x = 16,663,036,579.37
  5. Step 5: Solve for x
    x = 16,663,036,579.37/147,345.71
  6. Step 6: Final answer
    x = 113,088.03

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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.