Home / 115,323.46-159,146.55-63,639.35

Finding the Fourth Proportional to 115,323.46, 159,146.55 and 63,639.35

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Solution

The fourth proportional to 115,323.46, 159,146.55 and 63,639.35 is: 87,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,323.46 : 159,146.55 = 63,639.35 : x
  2. Step 2: Convert to fraction form
    115,323.46/159,146.55 = 63,639.35/x
  3. Step 3: Cross multiply
    115,323.46x = 159,146.55 × 63,639.35
  4. Step 4: Simplify right side
    115,323.46x = 10,127,982,996.74
  5. Step 5: Solve for x
    x = 10,127,982,996.74/115,323.46
  6. Step 6: Final answer
    x = 87,822.40

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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.