Home / 115,490.15-159,425.03-70,182.71

Finding the Fourth Proportional to 115,490.15, 159,425.03 and 70,182.71

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Solution

The fourth proportional to 115,490.15, 159,425.03 and 70,182.71 is: 96,881.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,490.15 : 159,425.03 = 70,182.71 : x
  2. Step 2: Convert to fraction form
    115,490.15/159,425.03 = 70,182.71/x
  3. Step 3: Cross multiply
    115,490.15x = 159,425.03 × 70,182.71
  4. Step 4: Simplify right side
    115,490.15x = 11,188,880,296.32
  5. Step 5: Solve for x
    x = 11,188,880,296.32/115,490.15
  6. Step 6: Final answer
    x = 96,881.68

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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.