Home / 112,579.65-155,359.95-64,831.97

Finding the Fourth Proportional to 112,579.65, 155,359.95 and 64,831.97

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Solution

The fourth proportional to 112,579.65, 155,359.95 and 64,831.97 is: 89,468.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,579.65 : 155,359.95 = 64,831.97 : x
  2. Step 2: Convert to fraction form
    112,579.65/155,359.95 = 64,831.97/x
  3. Step 3: Cross multiply
    112,579.65x = 155,359.95 × 64,831.97
  4. Step 4: Simplify right side
    112,579.65x = 10,072,291,617.60
  5. Step 5: Solve for x
    x = 10,072,291,617.60/112,579.65
  6. Step 6: Final answer
    x = 89,468.14

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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.