Home / 102,941.10-154,417.16-31,912.81

Finding the Fourth Proportional to 102,941.10, 154,417.16 and 31,912.81

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Solution

The fourth proportional to 102,941.10, 154,417.16 and 31,912.81 is: 47,870.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,941.10 : 154,417.16 = 31,912.81 : x
  2. Step 2: Convert to fraction form
    102,941.10/154,417.16 = 31,912.81/x
  3. Step 3: Cross multiply
    102,941.10x = 154,417.16 × 31,912.81
  4. Step 4: Simplify right side
    102,941.10x = 4,927,885,526.10
  5. Step 5: Solve for x
    x = 4,927,885,526.10/102,941.10
  6. Step 6: Final answer
    x = 47,870.92

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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.