Home / 106,281.48-159,312.87-47,145

Finding the Fourth Proportional to 106,281.48, 159,312.87 and 47,145

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Solution

The fourth proportional to 106,281.48, 159,312.87 and 47,145 is: 70,668.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,281.48 : 159,312.87 = 47,145 : x
  2. Step 2: Convert to fraction form
    106,281.48/159,312.87 = 47,145/x
  3. Step 3: Cross multiply
    106,281.48x = 159,312.87 × 47,145
  4. Step 4: Simplify right side
    106,281.48x = 7,510,805,256.15
  5. Step 5: Solve for x
    x = 7,510,805,256.15/106,281.48
  6. Step 6: Final answer
    x = 70,668.99

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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.