Home / 115,890.04-159,916.74-68,155.12

Finding the Fourth Proportional to 115,890.04, 159,916.74 and 68,155.12

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Solution

The fourth proportional to 115,890.04, 159,916.74 and 68,155.12 is: 94,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,890.04 : 159,916.74 = 68,155.12 : x
  2. Step 2: Convert to fraction form
    115,890.04/159,916.74 = 68,155.12/x
  3. Step 3: Cross multiply
    115,890.04x = 159,916.74 × 68,155.12
  4. Step 4: Simplify right side
    115,890.04x = 10,899,144,604.71
  5. Step 5: Solve for x
    x = 10,899,144,604.71/115,890.04
  6. Step 6: Final answer
    x = 94,047.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.