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Finding the Fourth Proportional to 163,765.74, 245,648.54 and 45,437.06

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Solution

The fourth proportional to 163,765.74, 245,648.54 and 45,437.06 is: 68,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,765.74 : 245,648.54 = 45,437.06 : x
  2. Step 2: Convert to fraction form
    163,765.74/245,648.54 = 45,437.06/x
  3. Step 3: Cross multiply
    163,765.74x = 245,648.54 × 45,437.06
  4. Step 4: Simplify right side
    163,765.74x = 11,161,547,450.89
  5. Step 5: Solve for x
    x = 11,161,547,450.89/163,765.74
  6. Step 6: Final answer
    x = 68,155.57

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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.