Home / 112,719.50-155,564.25-62,418.50

Finding the Fourth Proportional to 112,719.50, 155,564.25 and 62,418.50

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Solution

The fourth proportional to 112,719.50, 155,564.25 and 62,418.50 is: 86,143.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,719.50 : 155,564.25 = 62,418.50 : x
  2. Step 2: Convert to fraction form
    112,719.50/155,564.25 = 62,418.50/x
  3. Step 3: Cross multiply
    112,719.50x = 155,564.25 × 62,418.50
  4. Step 4: Simplify right side
    112,719.50x = 9,710,087,138.63
  5. Step 5: Solve for x
    x = 9,710,087,138.63/112,719.50
  6. Step 6: Final answer
    x = 86,143.81

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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.