Home / 99,055.18-136,612.98-65,037.64

Finding the Fourth Proportional to 99,055.18, 136,612.98 and 65,037.64

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Solution

The fourth proportional to 99,055.18, 136,612.98 and 65,037.64 is: 89,697.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,055.18 : 136,612.98 = 65,037.64 : x
  2. Step 2: Convert to fraction form
    99,055.18/136,612.98 = 65,037.64/x
  3. Step 3: Cross multiply
    99,055.18x = 136,612.98 × 65,037.64
  4. Step 4: Simplify right side
    99,055.18x = 8,884,985,812.57
  5. Step 5: Solve for x
    x = 8,884,985,812.57/99,055.18
  6. Step 6: Final answer
    x = 89,697.34

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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.