Home / 115,865.80-173,798.70-89,621.80

Finding the Fourth Proportional to 115,865.80, 173,798.70 and 89,621.80

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Solution

The fourth proportional to 115,865.80, 173,798.70 and 89,621.80 is: 134,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,865.80 : 173,798.70 = 89,621.80 : x
  2. Step 2: Convert to fraction form
    115,865.80/173,798.70 = 89,621.80/x
  3. Step 3: Cross multiply
    115,865.80x = 173,798.70 × 89,621.80
  4. Step 4: Simplify right side
    115,865.80x = 15,576,152,331.66
  5. Step 5: Solve for x
    x = 15,576,152,331.66/115,865.80
  6. Step 6: Final answer
    x = 134,432.70

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1.5x scale

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.