Home / 102,330.36-153,363.18-70,689.94

Finding the Fourth Proportional to 102,330.36, 153,363.18 and 70,689.94

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Solution

The fourth proportional to 102,330.36, 153,363.18 and 70,689.94 is: 105,943.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,330.36 : 153,363.18 = 70,689.94 : x
  2. Step 2: Convert to fraction form
    102,330.36/153,363.18 = 70,689.94/x
  3. Step 3: Cross multiply
    102,330.36x = 153,363.18 × 70,689.94
  4. Step 4: Simplify right side
    102,330.36x = 10,841,233,992.41
  5. Step 5: Solve for x
    x = 10,841,233,992.41/102,330.36
  6. Step 6: Final answer
    x = 105,943.48

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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.