Home / 98,370.12-135,588.90-69,699.40

Finding the Fourth Proportional to 98,370.12, 135,588.90 and 69,699.40

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Solution

The fourth proportional to 98,370.12, 135,588.90 and 69,699.40 is: 96,070.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,370.12 : 135,588.90 = 69,699.40 : x
  2. Step 2: Convert to fraction form
    98,370.12/135,588.90 = 69,699.40/x
  3. Step 3: Cross multiply
    98,370.12x = 135,588.90 × 69,699.40
  4. Step 4: Simplify right side
    98,370.12x = 9,450,464,976.66
  5. Step 5: Solve for x
    x = 9,450,464,976.66/98,370.12
  6. Step 6: Final answer
    x = 96,070.48

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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.