Home / 98,220.42-135,508.64-64,248.30

Finding the Fourth Proportional to 98,220.42, 135,508.64 and 64,248.30

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Solution

The fourth proportional to 98,220.42, 135,508.64 and 64,248.30 is: 88,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,220.42 : 135,508.64 = 64,248.30 : x
  2. Step 2: Convert to fraction form
    98,220.42/135,508.64 = 64,248.30/x
  3. Step 3: Cross multiply
    98,220.42x = 135,508.64 × 64,248.30
  4. Step 4: Simplify right side
    98,220.42x = 8,706,199,755.31
  5. Step 5: Solve for x
    x = 8,706,199,755.31/98,220.42
  6. Step 6: Final answer
    x = 88,639.41

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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.