Home / 103,018.55-154,531.93-31,948.56

Finding the Fourth Proportional to 103,018.55, 154,531.93 and 31,948.56

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Solution

The fourth proportional to 103,018.55, 154,531.93 and 31,948.56 is: 47,924.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,018.55 : 154,531.93 = 31,948.56 : x
  2. Step 2: Convert to fraction form
    103,018.55/154,531.93 = 31,948.56/x
  3. Step 3: Cross multiply
    103,018.55x = 154,531.93 × 31,948.56
  4. Step 4: Simplify right side
    103,018.55x = 4,937,072,637.52
  5. Step 5: Solve for x
    x = 4,937,072,637.52/103,018.55
  6. Step 6: Final answer
    x = 47,924.11

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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.