Home / 98,747.16-136,129.24-70,403.64

Finding the Fourth Proportional to 98,747.16, 136,129.24 and 70,403.64

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Solution

The fourth proportional to 98,747.16, 136,129.24 and 70,403.64 is: 97,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,747.16 : 136,129.24 = 70,403.64 : x
  2. Step 2: Convert to fraction form
    98,747.16/136,129.24 = 70,403.64/x
  3. Step 3: Cross multiply
    98,747.16x = 136,129.24 × 70,403.64
  4. Step 4: Simplify right side
    98,747.16x = 9,583,994,006.43
  5. Step 5: Solve for x
    x = 9,583,994,006.43/98,747.16
  6. Step 6: Final answer
    x = 97,055.90

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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.