Home / 98,259.57-135,287.34-89,280.21

Finding the Fourth Proportional to 98,259.57, 135,287.34 and 89,280.21

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Solution

The fourth proportional to 98,259.57, 135,287.34 and 89,280.21 is: 122,924.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,259.57 : 135,287.34 = 89,280.21 : x
  2. Step 2: Convert to fraction form
    98,259.57/135,287.34 = 89,280.21/x
  3. Step 3: Cross multiply
    98,259.57x = 135,287.34 × 89,280.21
  4. Step 4: Simplify right side
    98,259.57x = 12,078,482,125.54
  5. Step 5: Solve for x
    x = 12,078,482,125.54/98,259.57
  6. Step 6: Final answer
    x = 122,924.23

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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.