Home / 98,316.64-135,682.32-74,401.12

Finding the Fourth Proportional to 98,316.64, 135,682.32 and 74,401.12

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Solution

The fourth proportional to 98,316.64, 135,682.32 and 74,401.12 is: 102,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,316.64 : 135,682.32 = 74,401.12 : x
  2. Step 2: Convert to fraction form
    98,316.64/135,682.32 = 74,401.12/x
  3. Step 3: Cross multiply
    98,316.64x = 135,682.32 × 74,401.12
  4. Step 4: Simplify right side
    98,316.64x = 10,094,916,572.20
  5. Step 5: Solve for x
    x = 10,094,916,572.20/98,316.64
  6. Step 6: Final answer
    x = 102,677.60

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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.