Home / 137,333.79-189,526.03-76,903.90

Finding the Fourth Proportional to 137,333.79, 189,526.03 and 76,903.90

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Solution

The fourth proportional to 137,333.79, 189,526.03 and 76,903.90 is: 106,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,333.79 : 189,526.03 = 76,903.90 : x
  2. Step 2: Convert to fraction form
    137,333.79/189,526.03 = 76,903.90/x
  3. Step 3: Cross multiply
    137,333.79x = 189,526.03 × 76,903.90
  4. Step 4: Simplify right side
    137,333.79x = 14,575,290,192.44
  5. Step 5: Solve for x
    x = 14,575,290,192.44/137,333.79
  6. Step 6: Final answer
    x = 106,130.40

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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.