Home / 161,762.17-242,421.81-102,639.37

Finding the Fourth Proportional to 161,762.17, 242,421.81 and 102,639.37

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Solution

The fourth proportional to 161,762.17, 242,421.81 and 102,639.37 is: 153,818.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,762.17 : 242,421.81 = 102,639.37 : x
  2. Step 2: Convert to fraction form
    161,762.17/242,421.81 = 102,639.37/x
  3. Step 3: Cross multiply
    161,762.17x = 242,421.81 × 102,639.37
  4. Step 4: Simplify right side
    161,762.17x = 24,882,021,852.66
  5. Step 5: Solve for x
    x = 24,882,021,852.66/161,762.17
  6. Step 6: Final answer
    x = 153,818.55

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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.