Home / 86,746.10-130,313.55-83,203.70

Finding the Fourth Proportional to 86,746.10, 130,313.55 and 83,203.70

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Solution

The fourth proportional to 86,746.10, 130,313.55 and 83,203.70 is: 124,992.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,746.10 : 130,313.55 = 83,203.70 : x
  2. Step 2: Convert to fraction form
    86,746.10/130,313.55 = 83,203.70/x
  3. Step 3: Cross multiply
    86,746.10x = 130,313.55 × 83,203.70
  4. Step 4: Simplify right side
    86,746.10x = 10,842,569,520.14
  5. Step 5: Solve for x
    x = 10,842,569,520.14/86,746.10
  6. Step 6: Final answer
    x = 124,992.01

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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.