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Finding the Fourth Proportional to 98,009.34, 135,203.04 and 64,037.72

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Solution

The fourth proportional to 98,009.34, 135,203.04 and 64,037.72 is: 88,339.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,009.34 : 135,203.04 = 64,037.72 : x
  2. Step 2: Convert to fraction form
    98,009.34/135,203.04 = 64,037.72/x
  3. Step 3: Cross multiply
    98,009.34x = 135,203.04 × 64,037.72
  4. Step 4: Simplify right side
    98,009.34x = 8,658,093,422.47
  5. Step 5: Solve for x
    x = 8,658,093,422.47/98,009.34
  6. Step 6: Final answer
    x = 88,339.47

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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.