Home / 99,009.36-136,583.04-70,731.45

Finding the Fourth Proportional to 99,009.36, 136,583.04 and 70,731.45

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Solution

The fourth proportional to 99,009.36, 136,583.04 and 70,731.45 is: 97,573.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,009.36 : 136,583.04 = 70,731.45 : x
  2. Step 2: Convert to fraction form
    99,009.36/136,583.04 = 70,731.45/x
  3. Step 3: Cross multiply
    99,009.36x = 136,583.04 × 70,731.45
  4. Step 4: Simplify right side
    99,009.36x = 9,660,716,464.61
  5. Step 5: Solve for x
    x = 9,660,716,464.61/99,009.36
  6. Step 6: Final answer
    x = 97,573.77

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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.