Home / 136,962.65-189,008.04-76,533.35

Finding the Fourth Proportional to 136,962.65, 189,008.04 and 76,533.35

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Solution

The fourth proportional to 136,962.65, 189,008.04 and 76,533.35 is: 105,615.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,962.65 : 189,008.04 = 76,533.35 : x
  2. Step 2: Convert to fraction form
    136,962.65/189,008.04 = 76,533.35/x
  3. Step 3: Cross multiply
    136,962.65x = 189,008.04 × 76,533.35
  4. Step 4: Simplify right side
    136,962.65x = 14,465,418,478.13
  5. Step 5: Solve for x
    x = 14,465,418,478.13/136,962.65
  6. Step 6: Final answer
    x = 105,615.79

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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.